| Reference number | Title | Date |
| MM/14/142 | Letter from FW Dyson, Greenwich, to Joseph Larmor | 20 February 1912 |
| MM/16/62 | Letter from Joseph Larmor, Belfast, to RWF Harrison | 4 January 1904 |
| MM/17/87 | Letter from Joseph Larmor to Arthur W Rucker, Secretary, Royal Society | 26 June 1899 |
| MM/17/88 | Letter from Joseph Larmor to Arthur W Rucker, Secretary, Royal Society | 29 June 1899 |
| NLB/23/2/226 | Copy letter from Joseph Larmor, to W R Bousfield and T M Lowry | 11 July 1902 |
| MM/22/44 | Letter from Joseph Larmor, St John's College, Cambridge, to [Edmund Taylor] Whittaker | 18 October 1902 |
| NLB/40/759 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 6 August 1909 |
| NLB/23/2/160 | Copy letter from Joseph Larmor, to Hugh Ramage | 1 February 1902 |
| NLB/46/483 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 8 August 1912 |
| NLB/23/2/531 | Copy letter from Joseph Larmor, to Dr A W Church | 15 July 1904 |
| IM/002633 | Larmor, Sir Joseph | nd |
| MC/20/423 | Letter from [Michael Rogers] Oldfield Thomas, 9 St Petersburg Place, Bayswater, to Professor [Joseph] Larmor | 16 July 1905 |
| NLB/34/408 | Copy letter from Joseph Larmor, to Sir William Crookes, Fellow of the Royal Society | 17 January 1907 |
| NLB/38/627 | Copy letter from Joseph Larmor, to Professor [Harold Albert] Wilson, Fellow of the Royal Society | 13 October 1908 |
| NLB/24/537 | Copy letter from Joseph Larmor, to Professor Edwin Bailey Elliott, Fellow of the Royal Society | 30 May 1902 |
| NLB/34/127 | Copy letter from Archibald Geikie and Joseph Larmor, to Dr Ludwig Mond, Fellow of the Royal Society | 1 December 1906 |
| NLB/45/650 | Copy letter from Joseph Larmor to Professor Vernon Hardcourt | 18 April 1912 |
| NLB/26/747 | Copy letter from Sir Michael Foster and Joseph Larmor to, The Under Secretary of State, Colonial Office | 23 May 1903 |
| NLB/38/649 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 17 October 1908 |
| NLB/40/735 | Copy letter from Joseph Larmor to Professor E G Hall | 27 July 1909 |
| NLB/46/460 | Copy letter from Joseph Larmor, to Dr John Newport Langley, Fellow of the Royal Society | 1 August 1912 |
| NLB/40/696 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 20 July 1909 |
| NLB/40/701 | Copy letter from Joseph Larmor to Professor [Mias] | 21 July 1909 |
| NLB/23/2/175 | Copy letter from Joseph Larmor, to Dr J H Vincent, 17 Park Parade, Cambridge | 24 March 1902 |
| NLB/38/697 | Copy letter from Joseph Larmor and Archibald Geikie, to Professor Horace Lamb, Fellow of the Royal Society | 22 October 1908 |
| NLB/40/769 | Copy letter from Joseph Larmor to Dr H [Henry] C [Cabourn] Pockington FRS | August 1909 |
| NLB/23/2/303 | Copy letter sent from Joseph Larmor, to Lord Rayleigh | 12 February 1903 |
| NLB/36/47 | Copy letter from Joseph Larmor, to Colonel Cunningham | 27 July 1907 |
| NLB/24/200 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 21 March 1902 |
| NLB/23/2/162 | Copy letter from Joseph Larmor, to G W Walker | 1 February 1902 |
| NLB/26/147 | Copy telegram from Robert William Frederick Harrison to, Sir William Huggins, President of the Royal Society, 90 Upper Tulse Hill | [January 1903] |
| NLB/26/367 | Copy letter from unknown correspondent to, Professor Joseph Larmor, Secretary of the Royal Society | 9 March 1903 |
| NLB/36/52 | Copy letter from F T [Towle], to Professor Joseph Larmor, Secretary, Royal Society | 29 July 1907 |
| NLB/38/777 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 4 November 1908 |
| NLB/40/740 | Copy letter from F A Joule to Sir James Dewar | 28 July 1909 |
| NLB/38/787 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 6 November 1908 |
| NLB/38/784 | Copy letter from Joseph Larmor, to The Lord Avebury [John Lubbock], Fellow of the Royal Society | 3 November 1908 |
| NLB/40/736 | Copy letter from Joseph Larmor to Professor W F Fitzgerald | 27 July 1909 |
| NLB/40/760 | Copy letter from Robert William Frederick Harrison to J [John] H [Hilton] Grace FRS, Peterhouse, Cambridge | 6 August 1909 |
| NLB/23/2/349 | Copy letter from Sir Michael Foster and Joseph Larmor, to H M Secretary of State for Foreign Affairs, Foreign Office | 11 June 1903 |
| NLB/23/2/379 | Copy letter from Joseph Larmor, to Sir Andrew Noble, [Fellow of the Royal Society] | 23 October 1903 |
| RR/16/165 | Letter from Jospeh Larmor, to Charles Vernon Boys, regarding a paper 'A radical area-scale' by R W K Edwards | 11 February 1904 |
| NLB/23/2/227 | Copy letter from Joseph Larmor, to Dr M Wilderman | 11 July 1902 |
| NLB/6/782 | Copy letter from Theodore E James, to Messrs Harrison & Sons | [July 1892] |
| NLB/6/781 | Copy letter from Theodore E James, to Messrs Harrison & Sons | [July 1892] |
| NLB/34/600 | Copy letter from Joseph Larmor, to Sir William Crookes, Fellow of the Royal Society | 13 February 1907 |
| NLB/10/98 | Copy letter from Herbert Rix, to Dr Joseph Larmor, Fellow of the Royal Society | 28 September 1894 |
| NLB/26/686 | Copy telegram from Robert William Frederick Harrison to, Professor Joseph Larmor, St Johns College, Cambridge | [May 1903] |
| NLB/23/2/225 | Copy letter from Joseph Larmor, to R W Wright, University Press, Cambridge | 11 July 1902 |
| NLB/25/211 | Copy letter from Joseph Larmor, to William Huggins, President, Royal Society | 22 September 1902 |
| NLB/44/401 | Copy letter from Joseph Larmor to [Bertram] Hopkinson | 6 July 1911 |
| NLB/30/100 | Copy letter from an unknown correspondent, to Joseph Larmor, [Secretary, Royal Society] | 28 January 1905 |
| NLB/25/256 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Secretary, Royal Society | 4 October 1902 |
| NLB/9/602 | Copy letter from Herbert Rix, to Dr Joseph Larmor, Fellow of the Royal Society | 14 June 1894 |
| NLB/11/660 | Copy letter from an unknown correspondent, to [Lord Rayleigh, John William Strutt] | 2 September 1894 |
| NLB/13/306 | Copy letter from Robert William Frederick Harrison, to Major Percy Alexander MacMahon, Fellow of the Royal Society | 23 July 1896 |
| NLB/23/2/154 | Copy letter from Joseph Larmor, to The Registrar, The Owens College, Manchester | 9 January 1902 |
| NLB/13/463 | Copy letter from Theodore E James, to Major Percy Alexander MacMahon, Fellow of the Royal Society, Shaftesbury Mansions, 52 Shaftesbury Avenue, W. | 18 September 1896 |
| NLB/38 | New Letter Book volume 38, copy letters sent from Royal Society administration | 1 June 1908-12 November 1908 |
| NLB/23/2 | Copy letters sent from Royal Society administrative staff and officers | 23 January 1901-10 November 1901 |
| NLB/39 | New Letter Book volume 39, copy letters sent from Royal Society administration | 13 November 1908-18 March 1909 |
| NLB/35 | New Letter Book volume 35, copy letters sent from Royal Society administration | 26 March 1907-22 July 1907 |
| NLB/24 | New Letter Book volume 24, copy letters sent from Royal Society administration | 13 February 1902-21 July 1902 |
| NLB/25 | New Letter Book volume 25, copy letters sent from Royal Society administration | 21 July 1902-12 January 1903 |
| NLB/40 | New Letter Book voulme 40, copy letters sent from Royal Society administration | 19 March 1909-15 September 1909 |
| NLB/37 | New Letter Book volume 37, copy letters sent from Royal Society administration | 10 January 1908-1 June 1908 |
| RR/16/126 | Referee's report by Joseph Larmor, on a paper 'The photo-electric discharge between metallic surfaces in different gases' by W Mansergh Varley | 16 June 1903 |
| RR/15/407 | Fifth letter from Meyer Wilderman, on his paper 'Chemical dynamics and statics in light' to Joseph Larmor | 27 April 1902 |
| NLB/26 | New Letter Book volume 26, copy letters sent from Royal Society administration | 13 January 1903-13 June 1903 |
| RR/16/293 | Referee's report by Joseph Larmor, on a paper 'Le sage's theory of gravitation and the repulsion of light' by Professor George Howard Darwin | May 1905 |
| RR/19/142 | Referee's report by Joseph Larmor, on a paper 'Physico-chemical determinations at high pressures by optical methods' by Walter Wahl | [May 1912] |
| RR/16/364 | Referee's report by Joseph Larmor, on a paper 'The compressibility of gases between one atmosphere and half an atmosphere of pressure' by John William Strutt, Lord Rayleigh | February 1905 |
| NLB/14/345 | Copy letter from Robert William Frederick Harrison, to Professor Oliver Joseph Lodge, Fellow of the Royal Society | 20 February 1897 |
| NLB/44 | New Letter Book volume 44, copy letters sent from Royal Society administration | 12 April-4 December 1911 |
| RR/15/352 | Letter from George Howard Darwin, on a paper 'The equilibrium of rotating liquid cylinders' by James Hopwood Jeans to Joseph Larmor | 5 March 1902 |
| RR/15/392 | Referee's report by Joseph Larmor, on a paper 'The specific heats of metals and the relation of specific heat to atomic weight. Part II.' by William Augustus Tilden | December 1902 |
| RR/15/340 | Letter from Richard Tetley Glazebrook, to Joseph Larmor | 4 March 1902 |
| NLB/46/155 | Copy letter from Joseph Larmor, to Professor John Alexander McClelland, Fellow of the Royal Society | 18 June 1912 |
| NLB/34/605 | Copy letter from Joseph Larmor, to Dr Horton | 13 February 1907 |
| NLB/24/14 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor | 15 February 1902 |
| NLB/14/799 | Copy letter from Robert William Frederick Harrison, to J D Sprunt, 20 Lyndhust Gardens, Hampstead, N.W. | 21 May 1897 |
| RR/15/386 | Letter from George James Burch, on a paper 'The properties and theory of the capillary electrometer, with reference to Professor Hermann's observations on the same subject' by Henry Sessions Souttar to Joseph Larmor | 13 April 1902 |
| RR/15/354 | Letter from George Howard Darwin, on a paper 'On the vibrations and stability of a gravitating planet' by James Hopwood Jeans to Joseph Larmor | 7 November 1902 |
| NLB/14/661 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society, St John's College, Cambridge | 15 April 1897 |
| RR/15/314 | Referee's report by Joseph Larmor, on a paper 'An experimental determination of the variation of the critical velocity of water with temperature' by Ernest George Coker and S B Clement | 2 August 1902 |
| RR/15/403 | Second letter from Meyer Wilderman, on his paper 'Chemical dynamics and statics in light' to Joseph Larmor | April 1902 |
| NLB/14/707 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Professor Olaus Magnus Friedrich Erdmann Henrici, Professor Andrew Russell Forsyth, Professor Walter Elliot Elliot, Dr Ernest William Hobson, Fellows of the Royal Society | 28 April 1897 |
| NLB/25/30 | Copy letter from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | [25 July 1902] |
| NLB/23/2/211 | Copy letter from Joseph Larmor, to Professor Osborne Reynolds, Fellow of the Royal Society and J H Smith | 5 June 1902 |
| RR/16/93 | Referee's report by Joseph Larmor, on a paper 'Radiation in the Solar System. Its effect on temperature and its pressure on small bodies' by John Henry Poynting | July 1903 |
| RR/16/96 | Referee's report by Joseph Larmor, on a paper 'The acoustic shadow of the sphere, with an appendix by Professor A Lodge giving the values of Legendre's Functions from P0 to P20 at intervals of 5 degrees' by John William Strutt, 3rd Baron Rayleigh | 14 January 1904 |
| RR/15/346 | Memoranda from Robert William Frederick Harrison, and reply from Joseph Larmor, on a paper 'Simultaneous duplex crust-movements in the dolomites' by Olgivie Gordon | 11 November 1902 |
| NLB/27/134 | Copy letter from Joseph Larmor, to Professor Joseph John Thomson, [Fellow of the Royal Society] | 8 July 1903 |
| RR/15/337 | Letter from Charles Vernon Boys, on a paper 'A portable telemeter, or range-finder' by G Forbes to Joseph Larmor | 19 April 1902 |
| RR/15/404 | Third letter from Meyer Wilderman, on his paper 'Chemical dynamics and statics in light' to Joseph Larmor | 10 April 1902 |
| RR/16/1 | Referee's report by Joseph Larmor and William James Russell, on a paper 'the formation of definite figures by the deposition of dust' by John Aitken | 23 July 1903 |
| RR/18/118 | Letter from Joseph Larmor, on a paper 'The kinetic theory of a gas constituted of spherically symmetrical molecules' by S Chapman | 12 November 1911 |
| RR/16/202 | Referee's report by Joseph Larmor, on a paper 'The modulus of torsional rigidity of Quartz fibres, and its temperature coefficient' by Frank Horton | December 1904 |
| RR/16/242 | Referee's report by Joseph Larmor, on a paper 'On the electric effect of rotating a dielectric in a magnetic field' by Harold Albert Wilson | 22 May 1904 |
| RR/16/98 | Referee's report by Joseph Larmor, on a paper 'The electrical conductivity imparted to a vacuum by hot conductors' by Owen Willans Richardson | 29 March 1903 |
| RR/15/406 | Fourth letter from Meyer Wilderman, on his paper 'Chemical dynamics and statics in light' to Joseph Larmor | 23 April 1902 |
| RR/16/119 | Referee's report by Joseph Larmor, on a paper 'The forces acting on a charged condensor moving through space' by Frederick Thomas Trouton and H R Noble | 16 June 1903 |
| RR/15/374 | Referee's report by Joseph Larmor, on a paper 'The sub-mechanics of the universe' by Osborne Reynolds | 12 June 1902 |
| NLB/26/232 | Copy letter from Robert William Frederick Harrison to, Dr Joseph Larmor, Fellow of the Royal Society | 14 February 1903 |
| RR/16/156 | Letter from Joseph Larmor, on a paper 'An enquiry into the nature of the relationship between sunspot frequency and terrestrial magnetism' by Charles Chree to the author | March 1904 |
| RR/16/233 | Referee's report by Joseph Larmor, on a paper 'The specific heats of metals and the relation of specific heat to atomic weight. Part III.' by William Augustus Tilden | March 1904 |
| RR/16/395 | Referee's report by Joseph Larmor, on a paper 'The vapour pressure in equilibirum with substances holding varying amounts of moisture' by Frederick Thomas Trouton and B Pool | January 1906 |
| NLB/31/283 | Copy letter from A H White, to Professor Joseph Larmor, [Fellow of the Royal Society] | 20 July 1905 |
| RR/17/255 | Referee's report by Joseph Larmor, on a paper 'The osmotic pressures of aqueous solutions of calcium ferrocyanide. Part I - concentrated solutions' by Randal Thomas Mowbray Berkeley, J Hartley and C V Burton | 12 July 1908 |
| NLB/34/22 | Copy letter from Archibald Geikie, to Professor Joseph Larmor, Secretary of the Royal Society | 19 November 1906 |
| RR/16/136 | Referee's report by Joseph Larmor, on a paper 'On the discharge of electricity from hot Platinum' by Harold Albert Wilson | June 1903 |
| RR/16/212 | Referee's report by Joseph Larmor, on a paper 'On the wetting of cotton by water and by water vapour' by Watson Orme Masson | 3 May 1904 |
| RR/16/130 | Referee's report by Joseph Larmor, on a paper 'The Theory of Refraction in Gases'by George Walker Walker | 13 June 1903 |
| RR/17/112a | Committee report to Joseph Larmor, on a paper 'The impulses of compound waves and their mechanical transmission through the ear' by Sir Thomas Wrightson | 8 February 1907 |
| RR/17/20 | Referee's report by Jospeh Larmor, on a paper 'On the refractive indices of gaseous potassium, zinc, cadmium, mercury, arsenic, selenium and tellurium' by Clive Cuthbertson and E Parr Metcalfe | 21 November 1906 |
| NLB/23/2/161 | Copy letter from Joseph Larmor, to Thomas Andrews, Fellow of the Royal Society | 1 February 1902 |
| RR/15/64 | Referee's report by Joseph Larmor, on a paper 'The distribution of molecular energy' by James Hopwood Jeans | 14 July 1900 |
| NLB/26/476 | Copy letter from Joseph Larmor to, [Hugh Frank] Newall, [Fellow of the Royal Society] | 27 March 1903 |
| NLB/17/357 | Copy telegram from Robert William Frederick Harrison, to Robert Bellamy Clifton, [Fellow of the Royal Society], 3 Bardwell Road | [18 October 1898] |
| RR/19/31 | Referee's report by Joseph Larmor, on a paper 'On the refraction and dispersion of the halogens, halogen acids, ozone, steam, oxides of nitrogen and ammonia' by Clive Cuthbertson and Maude Cuthbertson | 25 November 1912 |
| RR/17/13 | Letter from John Henry Poynting, to Joseph Larmor, on a paper 'Ionic size in relation to the physical properties of aqueous solutions' by William Robert Bousfield | [February 1906] |
| NLB/15/48 | Copy letter from Arthur William Rucker, to Francis George Fitzgerald, [Fellow of the Royal Society] | 15 June 1897 |
| RR/17/127 | Referee's report by Joseph Larmor, on a paper 'Experiments with vacuum gold-leaf electroscopes on the mechanical temperature effects in rarefied gases' by James Thomson Bottomley and F A King | 7 February 1907 |
| RR/17/128 | Referee's report by Joseph Larmor, on a paper 'Thermal radiation in absolute measure at very low temperatures' by James Thomson Bottomley and F A King | [July 1907] |
| NLB/36/91 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society, St John's College, Cambridge | [9 August 1907] |
| NLB/15/43 | Copy letter from Arthur William Rucker, to [George Francis] Fitzgerald, [Fellow of the Royal Society] | 11 June 1907 |
| NLB/15/50 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 14 June 1897 |
| RR/16/194 | Referee's report by Joseph Larmor, on a paper 'Two-dimensional problems in magnetic induction, with special reference to flux distribution in toothed-core armatures' by Henry Selby Hele-Shaw, Alfred Hay and P H Powell | 27 February 1904 |
| NLB/15/139 | Copy letter from Arthur William Rucker, to George Francis Fitzgerald, Fellow of the Royal Society | 6 July 1897 |
| NLB/15/205 | Copy letter from Arthur William Rucker, to Professor George Francis Fitzgerald, Secretary Royal Society | 15 July 1897 |
| NLB/31/270 | Copy letter from Joseph Larmor, to Mr Thomas | 18 July 1905 |
| NLB/26/245 | Copy letter from Joseph Larmor to, W C D Wetham | 16 February 1908 |
| RR/17/93 | Referee's report by Joseph Larmor, on a paper 'On the periodicities of sunspots' by Arthur Schuster | 22 February 1906 |
| NLB/24/253 | Copy letter from Joseph Larmor, to Professor James Alfred Ewing, [Fellow of the Royal Society] | 11 April 1902 |
| NLB/15/426 | Copy letter from Robert William Frederick Harrison, to Professor George Francis Fitzgerald, Fellow of the Royal Society | 1 October 1897 |
| NLB/23/2/228 | Copy letter from Joseph Larmor, to Professor Harold Baily Dixon, Fellow of the Royal Society | 11 July 1902 |
| NLB/15/492 | Copy letter from Robert William Frederick Harrison, to Professor George Francis Fitzgerald, Fellow of the Royal Society | 13 October 1897 |
| NLB/29/712 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, Fellow of the Royal Society | 29 November 1904 |
| NLB/23/2/552 | Copy letter from Joseph Larmor, to Professor Georg Cantor, Universität, Halle | 3 November 1904 |
| NLB/23/1/851 | Copy telegram from Robert William Frederick Harrison, to Joseph Larmor, [Fellow of the Royal Society], St Johns College, Cambridge | [6 February 1902] |
| NLB/17/108 | Copy letter from Arthur William Rucker, to Joseph Larmor, [Fellow of the Royal Society] | 18 July 1898 |
| NLB/45/734 | Copy letter from Joseph Larmor to [William Turner] Thiselton Dyer | 1 May 1912 |
| NLB/17/302 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 6 October 1898 |
| NLB/23/2/397 | Copy letter from Joseph Larmor, to Horace Tabberer Brown, Fellow of the Royal Society | 12 November 1903 |
| NLB/27/159 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Secretary, Royal Society | 13 July 1903 |
| NLB/23/2/390 | Copy letter from Joseph Larmor, to The Deputy Master, Royal Mint, E. | 5 November 1903 |
| NLB/19/135 | Copy letter from Arthur William Rucker, to Dr Joseph Larmor, [Fellow of the Royal Society] | 27 June 1899 |
| NLB/23/2/216 | Copy letter from Joseph Larmor, to George Howard Darwin, Fellow of the Royal Society | 24 June 1902 |
| NLB/34/100 | Copy letter from Joseph Larmor, to Profeesor [Hugo] de Vries, Foreign Member of the Royal Society | 27 November 1906 |
| NLB/23/2/545 | Copy letter from Joseph Larmor, to General The Right Honorable Sir Dighton Probyn | 3 November 1904 |
| NLB/19/408 | Copy letter from Robert William Frederick Harrison, to Professor Arthur Schuster, Fellow of the Royal Society | 25 September 1899 |
| NLB/24/96 | Copy letter from Joseph Larmor, to Professor W Ramsay | 28 February 1902 |
| NLB/34/884 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 21 March 1907 |
| NLB/39/107 | Copy letter from Joseph Larmor to A [Alan] A [Archibald] Campbell Swinton, 66 Victoria Street, SW | November 1908 |
| NLB/23/2/550 | Copy letter from Joseph Larmor, to Oliver Heaviside, Fellow of the Royal Society | 3 November 1904 |
| NLB/23/1/833 | Copy letter from Joseph Larmor, to the Under Secretary of State for Foreign Affairs | 30 January 1902 |
| NLB/27/416 | Copy letter from Joseph Larmor, to Messrs Barclay & Company Limited | 18 September 1903 |
| NLB/30/454 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 27 March 1905 |
| NLB/20/554 | Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society | 21 May 1900 |
| NLB/23/2/514 | Copy letter from Joseph Larmor, to Professor W E Hale, 678 St John Avenue, Pasadena, California | 20 June 1904 |
| NLB/24/813 | Copy letter from Joseph Larmor, to Mr J W Gifford | 16 July 1902 |
| NLB/24/211 | Copy letter from Joseph Larmor, to Shelford Bidwell, [Fellow of the Royal Society] | 24 March 1902 |
| NLB/30/54 | Copy letter from Joseph Larmor, to Captain Henry George Lyons, Fellow of the Royal Society | January 1905 |
| NLB/23/2/239 | Copy letter from Joseph Larmor, to Professor Wyndham Rowland Dunstan, [Fellow of the Royal Society] and Dr T A Henry | 16 July 1902 |
| NLB/23/2/281 | Copy letter from Joseph Larmor, to Edwin Ray Lankester, Fellow of the Royal Society | 23 January 1903 |
| NLB/27/484 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 October 1903 |
| NLB/23/2/167 | Copy letter from Joseph Larmor, to Professor E Wilson | 20 February 1902 |
| NLB/33/84 | Copy letter from Joseph Larmor, to Mr Burke | 27 June 1906 |
| NLB/23/2/166 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 20 February 1902 |
| NLB/23/1/707 | Copy letter from Joseph Larmor, to the Registrar, Institute of Chemistry, 30 Bloomsbury Square, W.C. | 8 January 1902 |
| NLB/29/27 | Copy telegram from Joseph Larmor, to Robert John Strutt, Terling Place, Witham | [June 1904] |
| NLB/27/281 | Copy letter from Joseph Larmor, to Dr P E Shaw | 31 July 1903 |
| NLB/23/1/651 | Copy letter from Joseph Larmor, to F W Edridge-Green | 20 December 1901 |
| NLB/23/2/247 | Copy letter from Joseph Larmor, to Professor George Howard Darwin, Fellow of the Royal Society | 9 September 1902 |
| NLB/31/40 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 15 June 1905 |
| NLB/23/1/849 | Copy letter from Joseph Larmor, to Professor Walter Noel Hartley, [Fellow of the Royal Society] | 6 February 1902 |
| NLB/23/2/214 | Copy letter from Joseph Larmor, to G Bellby | 22 June 1902 |
| NLB/23/2/394 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 7 November 1903 |
| NLB/23/2/174 | Copy letter from Joseph Larmor, to Lord Rayleigh [John William Strutt], Fellow of the Royal Society | 24 March 1902 |
| NLB/24/590 | Copy letter from Joseph Larmor, to Dr Morris William Travers, [Fellow of the Royal Society] | 5 June 1902 |
| NLB/23/2/310 | Copy letter sent from Joseph Larmor, to Dr William James Russell, Fellow of the Royal Society | 20 March 1903 |
| NLB/24/623 | Copy telegram from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society, St Johns College, Cambridge | [June 1902] |
| NLB/45/618 | Copy letter from Joseph Larmor to W H Wilson | 16 April 1912 |
| NLB/23/2/217 | Copy letter from Joseph Larmor, to James Hopwood Jeans, [Fellow of the Royal Society] | 24 June 1902 |
| NLB/23/2/232 | Copy letter from Joseph Larmor, to Dr W G Ridewood, British Museum (Natural History), Cromwell Road, S.W. | 12 July 1902 |
| NLB/23/2/219 | Copy letter from Joseph Larmor, to Professor Gosta Mittag-Leffler, Foreign Member of the Royal Society | 24 June 1902 |
| NLB/23/2/245 | Copy letter from Joseph Larmor, to A J Ewart | 30 July 1902 |
| NLB/23/2/282 | Copy letter from Joseph Larmor, to C E Stromeyer | 23 January 1903 |
| NLB/23/2/547 | Copy letter from Joseph Larmor, to Sir William Crookes, Fellow of the Royal Society | 3 November 1904 |
| NLB/23/2/291 | Copy letter sent from Joseph Larmor, to Dr Henry Charlton Bastian, Fellow of the Royal Society | 26 January 1903 |
| NLB/23/2/313 | Copy letter sent from Joseph Larmor, to Professor Charles Jasper Joly, [Fellow of the Royal Society] | 20 March 1903 |
| NLB/23/2/229 | Copy letter from Joseph Larmor, to Ernest William MacBride, [Fellow of the Royal Society] | 11 July 1902 |
| NLB/23/2/215 | Copy letter from Joseph Larmor, to Professor Jules Henri Poincare, Foreign Member of the Royal Society | 24 June 1902 |
| NLB/33/423 | Copy letter from Theodore E James to Professor Joseph Larmor, Secretary, Royal Society | 29 August 1906 |
| NLB/29/219 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society | [August 1904] |
| NLB/23/2/261 | Copy letter from Joseph Larmor, to The Under Secretary of State, Colonial Office, S.W. | 7 November 1902 |
| NLB/23/2/316 | Copy letter sent from Joseph Larmor, to Louis Napoleon George Filon, Fellow of the Royal Society | 20 March 1903 |
| NLB/23/2/248 | Copy letter from Joseph Larmor and Michael Foster, to Francis Darwin, Fellow of the Royal Society | 30 October 1902 |
| NLB/23/2/396 | Copy letter from Joseph Larmor, to Sir David Gill, Fellow of the Royal Society | 12 November 1903 |
| NLB/23/2/233 | Copy letter from Joseph Larmor, to Professor Almroth Edward Wright, [Fellow of the Royal Society] | 15 July 1902 |
| NLB/23/2/311 | Copy letter sent from Joseph Larmor, to John Evershed, [Fellow of the Royal Society] | 20 March 1903 |
| NLB/24/314 | Copy letter from Joseph Larmor, to Dr M Wilderman | 24 April 1902 |
| NLB/23/2/312 | Copy letter sent from Joseph Larmor, to Professor Andrew Russell Forsyth, Fellow of the Royal Society | 20 March 1903 |
| NLB/23/2/148 | Copy letter from Joseph Larmor, to Professor Josiah Willard Gibbs, Foreign Member of the Royal Society | 10 December 1901 |
| NLB/23/2/224 | Copy letter from Joseph Larmor, to Professor Osborne Reynolds, Fellow of the Royal Society | 11 July 1902 |
| NLB/23/2/455 | Copy letter sent from Archibald Geikie and Joseph Larmor, to Dr Ludwig Mond, Fellow of the Royal Society | 3 March 1903 |
| NLB/23/2/180 | Copy letter from Joseph Larmor, to Dr Wilderman | 22 March 1902 |
| NLB/23/2/406 | Copy letter from Joseph Larmor, to George Albert Boulenger, Fellow of the Royal Society | 11 December 1903 |
| NLB/41/84 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 11 October 1909 |
| NLB/23/2/202 | Copy letter from Joseph Larmor, to J E S Moore and W B Randles | May 1902 |
| NLB/23/1/832 | Copy letter from Joseph Larmor, to Principal Ernest Howard Griffiths, [Fellow of the Royal Society] | 30 January 1902 |
| NLB/23/2/218 | Copy letter from Joseph Larmor, to Ernest William Barnes, [Fellow of the Royal Society] | 24 June 1902 |
| NLB/23/2/223 | Copy letter from Joseph Larmor, to Professor Gosta Mittag-Leffler, Foreign Member of the Royal Society | 2 July 1902 |
| NLB/23/2/212 | Copy letter from Sir Michael Foster and Joseph Larmor, to Dr Salvatore Calandruccio | 20 June 1902 |
| NLB/23/2/517 | Copy letter from Joseph Larmor, to The Secretary, Foreign Office, S.W. | 7 July 1904 |
| NLB/26/839 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 10 June 1903 |
| NLB/23/2/283 | Copy letter from Joseph Larmor, to The Secretary, Meteorological Council Committee | 23 January 1903 |
| NLB/24/251 | Copy letter from Joseph Larmor, to H S Souttar | 11 April 1902 |
| NLB/23/2/315 | Copy letter sent from Joseph Larmor, to Professor George Howard Darwin, Fellow of the Royal Society | 20 March 1903 |
| NLB/23/2/360 | Copy letter from Joseph Larmor, to William Napier Shaw, Fellow of the Royal Society, and William Henry Dines, [Fellow of the Royal Society] | 2 July 1903 |
| NLB/25/217 | Copy letter from Joseph Larmor, to Professor Robert Bellamy Clifton, [Fellow of the Royal Society] | 23 September 1902 |
| NLB/23/2/285 | Copy letter from Joseph Larmor, to J C W Humfrey | 23 January 1903 |
| NLB/23/2/314 | Copy letter sent from Joseph Larmor, to James Hopwood Jeans, [Fellow of the Royal Society] | 20 March 1903 |
| NLB/31/248 | Copy letter from Joseph Larmor, to Charles Chree, [Fellow of the Royal Society] | 14 July 1905 |
| NLB/23/2/319 | Copy letter sent from Joseph Larmor, to The Honorable Secretaries, The Manchester Literary and Philosophical Society, 20 George Street, Manchester | 24 April 1903 |
| NLB/23/2/388 | Copy letter from Joseph Larmor, to Professor Eduard Suess, Foreign Member of the Royal Society | 5 November 1903 |
| NLB/23/2/451 | Copy letter sent from Joseph Larmor and Arthur Geikie, to The Secretary, Royal Geographical Society | 22 February 1904 |
| NLB/23/2/293 | Copy letter sent from Joseph Larmor, to The Agent General, The Government of New Zealand | 27 January 1903 |
| NLB/23/2/305 | Copy letter sent from Joseph Larmor, to The Vice-Chancellor, University of Cambridge | 19 February 1903 |
| NLB/23/2/317 | Copy letter sent from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | 20 March 1903 |
| NLB/25/259 | Copy telegram from the Royal Society, to Joseph Larmor, [Fellow of the Royal Society], St John's College, Cambridge | [6 October 1902] |
| NLB/23/2/309 | Copy letter sent from Joseph Larmor, to Professor Joseph David Everett, Fellow of the Royal Society | 20 March 1903 |
| NLB/23/2/321 | Copy letter sent from Joseph Larmor, to Sir Clements Markham, Fellow of the Royal Society | 24 April 1903 |
| NLB/23/2/387 | Copy letter from Joseph Larmor, to Pierre Curie, [and Marie Curie] | 5 November 1903 |
| NLB/23/1/653 | Copy letter from Joseph Larmor, to Professor William Fletcher Barrett, Fellow of the Royal Society | 20 December 1901 |
| NLB/23/2/354 | Copy letter from Joseph Larmor, to The President, International Congress of Meteorology, Southport | 30 June 1903 |
| NLB/23/2/382 | Copy letter from Joseph Larmor, to The Secretary, Institution of Mechanical Engineers | 23 October 1903 |
| NLB/23/2/450 | Copy letter sent from Joseph Larmor and Archibald Geikie, to The Under Secretary of State, Colonial Office | February 1904 |
| NLB/23/2/483 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr J L Bunch, 116 Piccadilly, W. | 2 June 1904 |
| NLB/23/2/335 | Copy letter sent from Sir Michael Foster and Joseph Larmor, to The Director of the Public Control Department, London County Council | 14 May 1903 |
| NLB/23/2/389 | Copy letter from Joseph Larmor, to Professor Johann Wilhelm Hittorf | 5 November 1903 |
| NLB/24/51 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | [February 1902] |
| NLB/23/2/480 | Copy letter from Joseph Larmor, to Sir Charles Mitchell | 20 May 1904 |
| NLB/23/2/422 | Copy letter sent from Joseph Larmor and Archibald Geikie, to The Secretary, H M Treasury | 19 December 1903 |
| NLB/23/2/414 | Copy letter sent from Joseph Larmor, to Professor Thomas McKenny Hughes, Fellow of the Royal Society | 11 December 1903 |
| NLB/23/2/461 | Copy letter sent from Joseph Larmor and Archibald Geikie, to Sir Walter Prideaux, Goldsmiths Hall | 21 March 1904 |
| NLB/26/99 | Copy letter from Joseph Larmor to, Sir William Crookes, Fellow of the Royal Society | 27 January 1903 |
| NLB/43/649 | Copy letter from Robert William Frederick Harrison, to Professor Sir Joseph Larmor, Secretary of the Royal Society | 3 March 1911 |
| NLB/23/1/834 | Copy letter from Joseph Larmor, to Professor John Milne, [Fellow of the Royal Society] | 30 January 1902 |
| NLB/24/785 | Copy letter from Joseph Larmor, to Francis Darwin, Fellow of the Royal Society | 11 July 1902 |
| NLB/24/103 | Copy letter from Joseph Larmor, to [Henry Edward] Armstrong, [Fellow of the Royal Society] | 28 February 1902 |
| NLB/33/735 | Copy letter from Robert William Frederick Harrison, to Joseph Larmor, St John's College, Cambridge | [27 October 1906] |
| NLB/23/2/412 | Copy letter sent from Joseph Larmor, to William de Wiveleslie Abney, [Fellow of the Royal Society] | 11 December 1903 |
| NLB/23/1/836 | Copy letter from Joseph Larmor, to the Librarian, the University of Glasgow | 4 February 1902 |
| NLB/24/16 | Copy letter from Joseph Larmor, to J W Gifford | 15 February 1902 |
| NLB/24/214 | Copy letter from Joseph Larmor, to Professor J Joly | 26 March 1902 |
| NLB/24/53 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 21 February 1902 |
| NLB/25/187 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Secretary, Royal Society | 12 September 1902 |
| NLB/23/1/577 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, [Fellow of the Royal Society] | 5 December 1901 |
| NLB/24/806 | Copy letter from Joseph Larmor, to Francis Henry Neville, Fellow of the Royal Society | 12 July 1902 |
| NLB/23/2/497 | Copy letter from Joseph Larmor, to Professor Herbert Hall Turner, Fellow of the Royal Society | 17 June 1904 |
| NLB/23/2/485 | Copy letter from Joseph Larmor and Archibald Geikie, to Professor Easterfield, Victoria College, New Zealand | 2 June 1904 |
| NLB/23/2/525 | Copy letter from Joseph Larmor, to [Richard Dixon] Oldham, [Fellow of the Royal Society], 1 Kensington Park Road, S.W. | 15 July 1904 |
| NLB/24/557 | Copy telegram from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society, St John's College, Cambridge | [June 1902] |
| NLB/23/1/721 | Copy letter from Joseph Larmor, to Mr George Walker Walker, [Fellow of the Royal Society] | 9 January 1902 |
| NLB/23/2/453 | Copy letter sent from Joseph Larmor and Archibald Geikie, to The Secretary, H M Treasury | 28 February 1904 |
| NLB/23/2/454 | Copy letter sent from Joseph Larmor and Archibald Geikie, to The Secretary of the Meteorological Council | 1 March 1904 |
| NLB/23/1/654 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 20 December 1901 |
| NLB/23/2/560 | Copy letter from Joseph Larmor, to Dr H Laby | 10 November 1904 |
| NLB/23/2/549 | Copy letter from Joseph Larmor, to Professor William Henry Perkin, Jnr, Fellow of the Royal Society | 3 November 1904 |
| NLB/23/2/484 | Copy letter from Joseph Larmor and Archibald Geikie, to Professor Henry Edward Armstrong, Fellow of the Royal Society | 2 June 1904 |
| NLB/23/2/551 | Copy letter from Joseph Larmor, to William Bateson, Fellow of the Royal Society | 3 November 1904 |
| NLB/24/110 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | [March 1902] |
| NLB/23/1/615 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 13 December 1901 |
| NLB/23/1/650 | Copy letter from Joseph Larmor, to Dr [Henry Macdonald] Kyle, Marine Biological Laboratory, Plymouth | 19 December 1901 |
| NLB/23/1/689 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society, Helen's Bay | 3 January 1902 |
| NLB/23/1/636 | Copy letter from Joseph Larmor, to William Duddell, [Fellow of the Royal Society] | 16 December 1901 |
| NLB/24/6 | Copy letter from Joseph Larmor, to [Ernest William] Barnes, [Fellow of the Royal Society] | 13 February 1902 |
| NLB/23/1/739 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 14 January 1902 |
| NLB/23/2/527 | Copy letter from Joseph Larmor, to Edward Alexander Newell Arber | 15 July 1904 |
| NLB/24/786 | Copy letter from Joseph Larmor, to Sidney College, Cambridge | [July 1902] |
| NLB/24/50 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 20 February 1902 |
| NLB/23/1/626 | Copy letter from Joseph Larmor, to Professor William Fletcher Barnett, Fellow of the Royal Society | 16 December 1901 |
| NLB/23/1/620 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society], Trinity College, Cambridge | 16 December 1901 |
| NLB/23/1/754 | Copy letter from Joseph Larmor, to Monsieur le Professor Jean Gaston Darboux, [Foreign Member, Royal Society] | 16 January 1902 |
| NLB/23/1/647 | Copy letter from Joseph Larmor, to the Under Secretary of State for India, 20 December 1901 | 20 December 1901 |
| NLB/23/1/671 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, [Fellow of the Royal Society] | 26 December 1901 |
| NLB/23/2/543 | Copy letter from Joseph Larmor, to Sir John Eliot | 1 November 1904 |
| NLB/23/1/675 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 27 December 1901 |
| NLB/23/2/548 | Copy letter from Joseph Larmor, to Professor Ernest Rutherford, Fellow of the Royal Society | 3 November 1904 |
| NLB/23/2/529 | Copy letter from Joseph Larmor, to Professor J C Beattie, Cape Town | 11 July 1904 |
| NLB/23/2/518 | Copy letter from Joseph Larmor, to The Secretary, Board of Education | 7 July 1904 |
| NLB/24/167 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor [Fellow of the Royal Society], St John's College, Cambridge | 14 March 1902 |
| NLB/23/2/532 | Copy letter from Joseph Larmor, to Dr A W Campbell, County Asylum, Rainhill, near Liverpool | 15 July 1904 |
| NLB/23/2/530 | Copy letter from Joseph Larmor, to Professor Weiss | 15 July 1904 |
| NLB/23/2/539 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 28 October 1904 |
| NLB/30/122 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society | 30 January 1905 |
| NLB/24/29 | Copy letter from Joseph Larmor, to Professor Karl Pearson, [Fellow of the Royal Society] | 17 February 1902 |
| NLB/24/30 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, Fellow of the Royal Society | 17 February 1902 |
| NLB/34/441 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 23 January 1907 |
| NLB/23/1/879 | Copy letter from Joseph Larmor, to Charles Vernon Boys, Fellow of the Royal Society | 11 February 1902 |
| NLB/23/1/771 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 18 January 1902 |
| NLB/23/1/857 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 7 February 1902 |
| NLB/26/98 | Copy letter from Joseph Larmor to, F H Neville | 26 January 1903 |
| NLB/25/2 | Copy letter from Joseph Larmor to Professor Robert Bellamy Clifton, [Fellow of the Royal Society], Chairman of the Physics Committee | [July] 1902 |
| NLB/24/174 | Copy letter from Joseph Larmor, to G J Burch | 13 March 1902 |
| NLB/25/231 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Secretary, Royal Society | 25 September 1902 |
| NLB/23/1/837 | Copy letter from Theodore E James, to Dr Joseph Larmor, Secretary, Royal Society | 4 February 1902 |
| NLB/23/1/878 | Copy letter from Joseph Larmor, to Dr William Thomas Blanford, [Fellow of the Royal Society] | 11 February 1902 |
| NLB/23/1/874 | Copy letter from Joseph Larmor, to the Astronomer Royal [William Henry Mahoney Christie, Fellow of the Royal Society] | 31 January 1902 |
| NLB/24/811 | Copy letter from Joseph Larmor, to [Francis] Darwin, [Fellow of the Royal Society] | 15 July 1902 |
| NLB/25/62 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Fellow of the Royal Society | 1 August 1902 |
| NLB/29/237 | Copy letter from Joseph Larmor, to Messrs Williams and Norgate | 14 August 1904 |
| NLB/40/513 | Copy letter from Joseph Larmor to The Master of Emmanuel College, Cambridge | 18 June 1909 |
| NLB/27/706 | Copy telegram from an unknown correspondent, to [Joseph] Larmor, St John's College, Cambridge | [17 November 1903] |
| NLB/27/240 | Copy letter from Joseph Larmor, to Robert Bellamy Clifton, [Fellow of the Royal Society] | 23 July 1903 |
| NLB/31/197 | Copy letter from Joseph Larmor, to T F Claxton | July 1905 |
| NLB/24/757 | Copy letter from unknown correspondent, to Dr Joseph Larmor, Secretary of the Royal Society | 5 July 1902 |
| NLB/25/54 | Copy [telegram] from Robert William Frederick Harrison, to Joseph Larmor, [Fellow of the Royal Society], St Johns College, Cambridge | [31 July 1902] |
| NLB/26/249 | Copy letter from Joseph Larmor to, Professor William Burnside, Fellow of the Royal Society | 16 February 1903 |
| NLB/25/12 | Copy letter from Joseph Larmor, to Dr Alfred James Ewart, [Fellow of the Royal Society] | 23 July 1902 |
| NLB/24/252 | Copy letter from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | 11 April 1902 |
| NLB/25/80 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 5 August 1902 |
| NLB/25/78 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 5 August 1902 |
| NLB/24/210 | Copy letter from Joseph Larmor, to George James Burch, Fellow of the Royal Society | 26 March 1902 |
| NLB/24/322 | Copy letter from Joseph Larmor, to Thomas Andrews, [Fellow of the Royal Society] | 24 April 1902 |
| NLB/26/26 | Copy letter from Joseph Larmor to, Professor E Wilson | 15 June 1903 |
| NLB/25/3 | Copy letter from Joseph Larmor, to Professor Wydnham Rowland Dunstan, Fellow of the Royal Society | 21 July 1902 |
| NLB/40/514 | Copy letter from Joseph Larmor to The Vice Chancellor, The University of Manchester | 18 June 1909 |
| NLB/24/325 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 26 April 1902 |
| NLB/24/426 | Copy letter from Joseph Larmor, to Beilby | 15 May 1902 |
| NLB/24/301 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 22 April 1902 |
| NLB/25/100 | Copy letter from Joseph Larmor, to Professor [Charles] Lapworth, [Fellow of the Royal Society] | 3 August 1902 |
| NLB/25/285 | Copy letter from Joseph Larmor, to George Gladstone | 9 October 1902 |
| NLB/25/182 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Fellow of the Royal Society | 10 September 1902 |
| NLB/25/110 | Copy letter from Joseph Larmor, to Professor Robert Bellamy Clifton, [Fellow of the Royal Society] | 11 August 1902 |
| NLB/26/100 | Copy letter from Joseph Larmor to, Dr C E Stromeyer | 27 January 1903 |
| MS/928/2/112 | Letter from Joseph Larmor, Cambridge, to Charles Vernon Boys | 17 April 1921 |
| NLB/25/218 | Copy letter from Joseph Larmor, to Professor Olaus Magnus Friedrich Erdmann Henrici, [Fellow of the Royal Society] | 23 September 1902 |
| NLB/30/50 | Copy letter from Joseph Larmor, to Dr Frank Horton, [Fellow of the Royal Society], St John's College, Cambridge | January 1905 |
| NLB/25/200 | Copy letter from Theodore E James, to Dr Joseph Larmor, Secretary, Royal Society | 19 September 1902 |
| NLB/24/628 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 10 June 1902 |
| NLB/24/371 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 5 May 1902 |
| NLB/24/402 | Copy telegram from Robert William Frederick Harrison, to Dr Joseph Larmor, St John's College, Cambridge | [May 1902] |
| NLB/31/202 | Copy letter from Joseph Larmor, to Professor Harold Baily Dixon, Fellow of the Royal Society and E C Edgar | 8 July 1905 |
| NLB/40/87 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Sec RS | 5 April 1909 |
| NLB/24/420 | Copy letter from Joseph Larmor, to J R Ashworth | 10 May 1902 |
| NLB/25/228 | Copy letter from Joseph Larmor, to the Under Secretary of State, India Office, S.W. | 26 September 1902 |
| NLB/25/545 | Copy letter from Joseph Larmor, to the Librarian, Royal Colonial Institute | 17 November 1902 |
| NLB/25/249 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 2 October 1902 |
| NLB/24/535 | Copy letter from Joseph Larmor, to Professor [George] Forbes, Fellow of the Royal Society | May 1902 |
| NLB/25/318 | Copy letter from Joseph Larmor, to the Secretary of the Society of Chemical Industry | 15 October 1902 |
| NLB/24/465 | Copy letter from Joseph Larmor, to Mr Beilby | 22 May 1902 |
| NLB/25/330 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 17 October 1902 |
| NLB/25/216 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 23 September 1902 |
| NLB/25/213 | Copy letter from Joseph Larmor, to the Secretary, the University of Christiania | 23 September 1902 |
| NLB/25/233 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | [29 September 1902] |
| NLB/25/382 | Copy letter from Joseph Larmor, to Dr Ernest George Coker, [Fellow of the Royal Society] | 27 October 1902 |
| NLB/25/383 | Copy letter from Joseph Larmor, to Dr Thomas Edward Thorpe, [Fellow of the Royal Society] | 22 October 1902 |
| NLB/25/366 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 23 October 1902 |
| NLB/24/536 | Copy letter from Joseph Larmor, to [Henry Charlton] Bastian, Fellow of the Royal Society | 30 May 1902 |
| NLB/26/854 | Copy letter from Theodore E James to, Professor Joseph Larmor, Secretary of the Royal Society | 12 June 1903 |
| NLB/25/776 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 23 December 1902 |
| NLB/25/513 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, [Fellow of the Royal Society] | 12 November 1902 |
| NLB/24/542 | Copy letter from Joseph Larmor, to [Carsten Egeberg] Borchgrevink | 30 May 1902 |
| NLB/24/571 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 3 June 1902 |
| NLB/25/467 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 8 November 1902 |
| NLB/25/510 | Copy letter from Joseph Larmor, to Horace Lamb, Fellow of the Royal Society, 6 Wilbraham Road, Fallowfield, Manchester | 12 November 1902 |
| NLB/25/99 | Copy letter from Joseph Larmor, to Mrs Maria [Matilda] Ogilvie Gordon | 8 August 1902 |
| NLB/25/542 | Copy letter from Joseph Larmor, to Dr W J Lockyer | 18 November 1902 |
| NLB/25/477 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 10 November 1902 |
| NLB/27/393 | Copy letter from Joseph Larmor and Michael Foster, to the Under Secretary of State for India | 5 September 1903 |
| NLB/27/217 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 21 July 1903 |
| NLB/24/725 | Copy letter from Joseph Larmor, to The College Librarian, Royal College of of Surgeons | 1 July 1902 |
| NLB/24/649 | Copy letter from Joseph Larmor, to Lord Rayleigh, Fellow of the Royal Society | 11 June 1902 |
| NLB/25/509 | Copy letter from Joseph Larmor, to Professor Edward Albert Sharpey-Schafer, [Fellow of the Royal Society], the University, Edinburgh | 12 November 1902 |
| NLB/25/502 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 11 November 1902 |
| NLB/24/681 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 17 June 1902 |
| NLB/27/24 | Copy letter from Joseph Larmor, to Mr J C Graham | 19 June 1903 |
| NLB/25/856 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, [Secretary of the Royal Society] | 13 January 1903 |
| NLB/30/53 | Copy letter from Joseph Larmor, to Professor Charles Niven, Fellow of the Royal Society | January 1905 |
| NLB/25/709 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, [Fellow of the Royal Society] | 12 December 1902 |
| NLB/24/759 | Copy letter from Joseph Larmor, to [James Hopwood] Jeans, [Fellow of the Royal Society] | 3 July 1902 |
| NLB/24/812 | Copy letter from Joseph Larmor, to Walter Rosenhain, [Fellow of the Royal Society] | 16 July 1902 |
| NLB/25/592 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 24 November 1902 |
| NLB/24/810 | Copy letter from Joseph Larmor, to Professor Wyndham Rowland Dunstan, Fellow of the Royal Society | 16 July 1902 |
| NLB/24/789 | Copy letter from Joseph Larmor, to [William Henry Mahoney Christie], Astronomer Royal, Fellow of the Royal Society | 12 July 1902 |
| NLB/24/713 | Copy letter from Joseph Larmor, to Dr [Frederick] Edridge-Green | 24 June 1902 |
| NLB/23/2/176 | Copy letter from Joseph Larmor, to J Cameron, 12 Bell Street, St Andrews, N.B. | 24 March 1902 |
| NLB/27/615 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, [Fellow of the Royal Society] | 29 October 1903 |
| NLB/25/631 | Copy letter from Joseph Larmor, to the Astronomer Royal [Sir William Henry Mahoney Christie, Fellow of the Royal Society] | 2 December 1902 |
| NLB/25/669 | Copy letter from Michael Foster and Joseph Larmor, to Sir Clement Hill, [Foreign Office] | 6 December 1902 |
| NLB/30/231 | Copy letter from Joseph Larmor, to George Thomas Beilby, [Fellow of the Royal Society], 11 University Gardens, Glasgow | February 1905 |
| NLB/24/719 | Copy letter from Joseph Larmor, to Professor Karl Pearson, [Fellow of the Royal Society] | 23 June 1902 |
| NLB/26/608 | Copy letter from Sir Michael Foster, and Joseph Larmor to, The Master of the Mercer's Company | 29 April 1903 |
| NLB/27/227 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Fellow of the Royal Society] | 22 July 1903 |
| NLB/25/679 | Copy letter from an unknown correspondent, to Dr Joseph Larmor, Secretary, Royal Society | 8 December 1902 |
| NLB/26/349 | Copy letter from Joseph Larmor to, Professor Augustus Edward Hough Love, Fellow of the Royal Society | 5 March 1903 |
| NLB/24/694 | Copy letter from Joseph Larmor, to Professor James Dewar, [Fellow of the Royal Society] | 20 June 1902 |
| NLB/43/154 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 12 November 1910 |
| NLB/31/204 | Copy letter from Joseph Larmor, to J C Maxwell Garner, Board of Education, South Kensington, S.W. | July 1905 |
| NLB/26/9 | Copy letter from Robert William Frederick Harrison to, Dr Joseph Larmor, Secretary of the Royal Society | 13 January 1903 |
| NLB/31/201 | Copy letter from Joseph Larmor, to Sir William de Wiveleslie Abney, Fellow of the Royal Society | 8 July 1905 |
| NLB/25/752 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, [Fellow of the Royal Society] | 19 December 1902 |
| RR/17/165 | Referee's report by Joseph Larmor, on a paper 'On the frictional resistances to the flow of air through a pipe' by John H Grindley and A H Gibson | [1907] |
| NLB/27/112 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 2 July 1903 |
| NLB/25/611 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 26 November 1902 |
| NLB/26/59 | Copy letter from Dr Joseph Larmor to, Dr William Napier Shaw, Fellow of the Royal Society | 21 January 1903 |
| NLB/26/69 | Copy letter from Joseph Larmor to, Professor [Thomas George] Bonney, Fellow of the Royal Society | 23 January 1903 |
| NLB/26/25 | Copy letter from Joseph Larmor to, Professor Edwin Ray Lankester, Fellow of the Royal Society | 13 January 1903 |
| NLB/25/833 | Copy letter from Joseph Larmor, to Professor Charles Jasper Joly, [Fellow of the Royal Society] | 8 January 1903 |
| NLB/25/825 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, [Fellow of the Royal Society] | 8 January 1903 |
| NLB/25/832 | Copy letter from Joseph Larmor, to Professor Charles Scott Sherrington, Fellow of the Royal Society | 8 January 1903 |
| NLB/26/108 | Copy letter from Joseph Larmor to, Sir Michael Foster, Secretary of the Royal Society | 27 January 1903 |
| RR/19/55 | Referee's report by Jospeh Larmor, on a paper 'On the variation with temperature of the rate of a chemical change' by Augustus George Vernon Harcourt | [May 1912] |
| NLB/26/246 | Copy letter from Joseph Larmor to, Professor [George Downing] Liveing, [Fellow of the Royal Society] | 16 February 1903 |
| NLB/25/848 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary, Royal Society | 12 January 1903 |
| NLB/27/173 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary, Royal Society | 15 July 1903 |
| NLB/27/194 | Copy letter from Joseph Larmor, to Dr Charles Chree, Fellow of the Royal Society | 15 July 1903 |
| NLB/26/496 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 31 March 1903 |
| NLB/26/178 | Copy telegram from Robert William Frederick Harrison to, Dr Joseph Larmor, St John's College Cambridge | [February 1903] |
| NLB/27/179 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Secretary, Royal Society | 15 July 1903 |
| NLB/30/656 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 2 May 1905 |
| NLB/23/2/380 | Copy letter from Joseph Larmor, to Professor Joseph John Thomson, Fellow of the Royal Society | 22 October 1903 |
| NLB/27/456 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, [Fellow of the Royal Society], Chairman of the Mathematics Committee | 1 October 1903 |
| NLB/27/459 | Copy letter from Joseph Larmor, to the Secretary, British South Africa Company | 1 October 1903 |
| NLB/26/221 | Copy letter from Joseph Larmor to, James Whitbread Lee Glaisher, Fellow of the Royal Society | 13 February 1903 |
| NLB/26/524 | Copy letter from Joseph Larmor to, The Swan Engraving Company | 7 April 1903 |
| NLB/27/5 | Copy letter from Joseph Larmor, to Sir William Preece, [Fellow of the Royal Society] | 15 June 1903 |
| NLB/27/273 | Copy letter from Joseph Larmor, to Professor Horace Lamb, [Fellow of the Royal Society] | 30 July 1903 |
| NLB/26/330 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 3 March 1903 |
| NLB/27/135 | Copy letter from Joseph Larmor, to Mr A Fowler | 8 July 1903 |
| NLB/27/113 | Copy letter from Joseph Larmor, to Frederick Thomas Trouton, [Fellow of the Royal Society] | 2 July 1903 |
| NLB/27/123 | Copy letter from Joseph Larmor, to W Carrick Anderson and J Lean | 2 July 1903 |
| NLB/27/213 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 21 July 1903 |
| NLB/27/616 | Copy letter from Joseph Larmor, to Harlod Bailey Dixon, [Fellow of the Royal Society] | 29 October 1903 |
| NLB/30/349 | Copy letter from Joseph Larmor, to Dr Edgar Philip Perman, and John Hughes Davies | March 1905 |
| NLB/30/562 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 12 April 1905 |
| NLB/26/206 | Copy letter from Joseph Larmor to, Dr [Henry Charlton] Bastian, [Fellow of the Royal Society] | 10 February 1903 |
| NLB/31/757 | Copy letter from Robert Frederick William Harrison, to Joseph Larmor, Secretary, Royal Society | 10 November 1905 |
| NLB/26/385 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 10 March 1903 |
| NLB/26/523 | Copy letter from Joseph Larmor to, [Sir William Henry Mahoney Christie], [Fellow of the Royal Society], Astronomer Royal | 7 April 1903 |
| NLB/26/424 | Copy letter from Joseph Larmor to, Sir John Hay | 17 March 1903 |
| NLB/27/193 | Copy letter from Michael Foster and Joseph Larmor, to Lieutenant General N Artamanoff, Chef de la Section Topographique de l'Etat Major, Ministere de la Guerre, St Petersburg | 15 July 1903 |
| NLB/27/147 | Copy letter from Joseph Larmor, to W Carrick Anderson | 10 July 1903 |
| NLB/30/554 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 11 April 1905 |
| NLB/27/275 | Copy letter from Joseph Larmor, to Edward Charles Cyril Baly, [Fellow of the Royal Society] | 30 July 1903 |
| NLB/26/464 | Copy letter from Joseph Larmor to, Mr Cooke | 25 March 1903 |
| NLB/26/353 | Copy letter from Robert William Frederick Harrison to, Dr Joseph Larmor, Secretary of the Royal Society | 6 March 1903 |
| NLB/26/401 | Copy letter from Joseph Larmor to, William Napier Shaw, Fellow of the Royal Society, Meteorological Office | 13 March 1903 |
| NLB/27/241 | Copy letter from Joseph Larmor, to the Secretary, Cambridge University Press | 23 July 1903 |
| NLB/27/235 | Copy letter from Joseph Larmor, to Professor George Hartley Bryan, Fellow of the Royal Society | 18 July 1903 |
| NLB/27/234 | Copy letter from Joseph Larmor, to Professor John William Mallet, Fellow of the Royal Society | 21 July 1903 |
| NLB/27/460 | Copy letter from Joseph Larmor, to Professor Thomas Roscoe Reede Stebbing, Fellow of the Royal Society | 1 October 1903 |
| NLB/27/232 | Copy letter from Michael Foster and Joseph Larmor, to Reverend Thomas Roscoe Reede Stebbing, Fellow of the Royal Society | 23 July 1903 |
| NLB/27/279 | Copy letter from Joseph Larmor, to Professor Henry Edward Armstrong, [Fellow of the Royal Society] | 30 July 1903 |
| NLB/26/483 | Copy letter from Robert William Frederick Harrison to, Dr Joseph Larmor, Secretary of the Royal Society | 30 March 1903 |
| NLB/27/375 | Copy letter from Michael Foster and Joseph Larmor, to the Under Secretary of State for India | [26 August 1903] |
| NLB/30/216 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Secretary, Royal Society | 14 February 1905 |
| NLB/26/641 | Copy letter from Joseph Larmor to, Sir Clements Robert Markham, Fellow of the Royal Society | 5 May 1903 |
| NLB/27/274 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, [Fellow of the Royal Society] | 30 July 1903 |
| NLB/27/390 | Copy letter from Joseph Larmor, to Mr Henry R Noble | 4 September 1903 |
| NLB/27/388 | Copy letter from Joseph Larmor, to Messrs Troughton & Sims, 340 Woolwich Road, Charlton | 4 September 1903 |
| NLB/30/229 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society, and F E Baxandall | February 1905 |
| NLB/30/230 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | February 1905 |
| NLB/27/370 | Copy letter from Joseph Larmor and Michael Foster, to the Under Secretary of State for the Colonies | 24 August 1903 |
| NLB/27/386 | Copy letter from Joseph Larmor, to J F Jones, Secretary, British South Africa Company, 2 London | 4 September 1903 |
| NLB/26/557 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 20 April 1903 |
| NLB/30/3 | Copy letter from Joseph Larmor, to Dr Ernest Howard Griffiths, [Fellow of the Royal Society] | 15 January 1905 |
| NLB/26/808 | Copy letter from Joseph Larmor to, [Thomas Edward]Thorpe, [Fellow of the Royal Society] | 4 June 1903 |
| NLB/27/458 | Copy letter from Joseph Larmor, to Professor John William Mallet, Fellow of the Royal Society | 1 October 1903 |
| NLB/27/506 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 9 October 1903 |
| NLB/28/33 | Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 21 December 1903 |
| NLB/27/524 | Copy letter from Joseph Larmor, to Karl Pearson, [Fellow of the Royal Society] | 15 October 1903 |
| MC/23/327 | Letter from [George Henry Falkiner] Nuttall, 3 Cranmer Road, Cambridge, to [Joseph] Larmor, [Royal Society] | 24 April 1908 |
| NLB/27/489 | Copy letter from Joseph Larmor, to the Secretary, British South Africa Company | 8 October 1903 |
| NLB/30/587 | Copy letter from Joseph Larmor, to Clinton Coleridge Farr, [Fellow of the Royal Society] | April 1905 |
| NLB/31/203 | Copy letter from Joseph Larmor, to Sir Andrew Noble, Fellow of the Royal Society | 8 July 1905 |
| NLB/26/733 | Copy letter from Joseph Larmor to, P V Bevan, Trinity College, Cambridge | 21 May 1903 |
| NLB/26/627 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 1 May 1903 |
| NLB/26/675 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 8 May 1903 |
| NLB/27/605 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 27 October 1903 |
| NLB/26/744 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 22 May 1903 |
| NLB/26/715 | Copy letter from Robert William Frederick Harrison to, Professor [Joseph] Larmor, Secretary of the Royal Society | 18 May 1903 |
| NLB/29/509 | Copy letter from Joseph Larmor, to Professor Henry Edward Armstrong, Fellow of the Royal Society | 28 October 1904 |
| NLB/26/677 | Copy letter from Robert William Frederick Harrison to, Professor Joseph Larmor, Secretary of the Royal Society | 8 May 1903 |
| NLB/30/321 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 3 March 1905 |
| NLB/27/621 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 30 October 1903 |
| NLB/29/352 | Copy letter from Joseph Larmor, to Dr G Senter, 37 Ronalds Road, Highbury, N. | 28 September 1904 |
| NLB/26/807 | Copy letter from Joseph Larmor to, [Robert Bellamy] Clifton, Fellow of the Royal Society | 4 June 1903 |
| NLB/26/743 | Copy letter from Sir Michael Foster and Joseph Larmor to, The Permanent Under-Secretary of the War Office | 21 May 1903 |
| NLB/26/678 | Copy letter from Theodore E James to, Professor Joseph Larmor, Secretary of the Royal Society | 8 May 1903 |
| NLB/31/25 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 9 June 1905 |
| NLB/31/198 | Copy letter from Joseph Larmor, to James Hopwood Jeans, [Fellow of the Royal Society] | 8 July 1905 |
| NLB/30/60 | Copy letter from Joseph Larmor, to Professor Thomas George Bonney, [Fellow of the Royal Society] | 20 January 1905 |
| NLB/28/16 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 18 December 1903 |
| NLB/30/348 | Copy letter from Joseph Larmor, to Dr Otto Hahn, [Fellow of the Royal Society], care of Sir William Ramsay, Fellow of the Royal Society, University College, W.C. | March 1905 |
| NLB/30/586 | Copy letter from Joseph Larmor, to J B Burke | April 1905 |
| NLB/29/256 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary of the Royal Society | 24 August 1904 |
| NLB/30/89 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Secretary, Royal Society] | 25 January 1905 |
| NLB/30/862 | Copy letter from Joseph Larmor, to Mr Burch | 1 June 1905 |
| NLB/27/849 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 11 December 1903 |
| NLB/30/682 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 8 May 1905 |
| NLB/28/74 | Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 5 January 1904 |
| NLB/30/61 | Copy letter from Robert William Frederick Harrison, to Joseph Larmor, Secretary, Royal Society | 23 January 1905 |
| NLB/29/214 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary of the Royal Society | 3 August 1904 |
| NLB/27/738 | Copy letter from Robert William Frederick Harrison, to Joseph Larmor, [Fellow of the Royal Society], St John's College, Cambridge | 23 November 1903 |
| NLB/27/814 | Copy letter from Joseph Larmor, to Dr William Thomas Blanford, Fellow of the Royal Society | 3 December 1903 |
| NLB/27/716 | Copy letter from Michael Foster and Joseph Larmor, to the President of the Schlesische Gesellschaft für Vaterländische Cultur | 18 November 1903 |
| NLB/30/233 | Copy letter from Joseph Larmor, to W Rosenhain, 443 Gillott Road, Edgbaston, Birmingham | February 1905 |
| NLB/28/54 | Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Howe Love, Fellow of the Royal Society | 24 December 1903 |
| NLB/30/51 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | January 1905 |
| NLB/28/98 | Copy letter from Joseph Larmor, to Captain Thomas Henry Tizard, Fellow of the Royal Society | 8 January 1904 |
| NLB/27/752 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 24 November 1903 |
| NLB/27/869 | Copy letter from Joseph Larmor, to Captain Thomas Henry Tizard, Fellow of the Royal Society | 11 December 1903 |
| NLB/31/199 | Copy letter from Joseph Larmor, to S J Barnett | 8 July 1905 |
| NLB/27/868 | Copy letter from Joseph Larmor, to Professor Herbert Hall Turner, Fellow of the Royal Society | 11 December 1903 |
| NLB/29/61 | Copy letter from Joseph Larmor, to Professor William Dobinson Halliburton, Fellow of the Royal Society | [June 1904] |
| NLB/29/6 | Copy letter from Joseph Larmor, to Major Percy Alexander MacMahon, Fellow of the Royal Society | 14 June 1904 |
| NLB/33/16 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Fellow of the Royal Society] | [19] June 1906 |
| NLB/30/232 | Copy letter from Joseph Larmor, to Professor Bertram Hopkinson, [Fellow of the Royal Society], Trinity College, Cambridge | February 1905 |
| NLB/30/52 | Copy letter from Joseph Larmor, to Professor Morris William Travers, [Fellow of the Royal Society] and , A G C Gwyer | January 1905 |
| NLB/30/39 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 20 January 1905 |
| NLB/34/420 | Copy letter from Joseph Larmor, to Mr Porter | 17 January 1907 |
| NLB/30/34 | Copy letter from Joseph Larmor, to the Secretary, the Imperial Academy of Sciences, Vienna | 17 January 1905 |
| NLB/29/64 | Copy letter from Joseph Larmor, to Professor William Dobinson Halliburton, Fellow of the Royal Society | [June 1904] |
| NLB/30/167 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 February 1905 |
| NLB/28/172 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 26 January 1904 |
| NLB/29/24 | Copy letter from Joseph Larmor, to Mrs [Hertha] Ayrton | 17 June 1904 |
| NLB/28/114 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 12 January 1904 |
| NLB/30/36 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, His Majesty's Board of Trade | 20 January 1905 |
| NLB/30/33 | Copy letter from Joseph Larmor, to the Secretary, Imperial Academy of Sciences, St Petersburg | 17 January 1905 |
| NLB/30/40 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, [Fellow of the Royal Society] | 20 January 1905 |
| NLB/34/606 | Copy letter from Joseph Larmor, to Mr Porter | 13 February 1907 |
| NLB/34/166 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | [December 1906] |
| NLB/30/49 | Copy letter from Joseph Larmor, to Dr Charles Herbert Lees, [Fellow of the Royal Society], 42 Lorne Grove, Fallowfield, Manchester | January 1905 |
| NLB/30/93 | Copy letter from Joseph Larmor, to Horace Tabberer Brown, Fellow of the Royal Society | 26 January 1905 |
| NLB/30/18 | Copy letter from Joseph Larmor, to Charles Chree, [Fellow of the Royal Society] | 17 January 1905 |
| NLB/30/133 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, [Fellow of the Royal Society] | 2 February 1905 |
| NLB/30/81 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 24 January 1905 |
| NLB/30/155 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 6 February 1905 |
| NLB/30/581 | Copy letter from Joseph Larmor, to A H Peake | April 1905 |
| NLB/39/728 | Copy letter from Robert William Frederick Harrison to Professor J B Henderson | 1 March 1909 |
| NLB/46/54 | Copy letter from Joseph Larmor, to Sir William Thiselton Dyer, Fellow of the Royal Society | 5 June 1912 |
| NLB/30/600 | Copy letter from Joseph Larmor, to Professor Bertram Hopkinson, [Fellow of the Royal Society], and F Rogers | 13 April 1905 |
| NLB/30/815 | Copy letter from Joseph Larmor, to Professor [Arthur] Schuster, [Fellow of the Royal Society] | 27 May 1905 |
| NLB/30/583 | Copy letter from Joseph Larmor, to William Robert Bousfield, [Fellow of the Royal Society] | April 1905 |
| MC/19/810 | Letter from [Frederick Thomas] Trouton, Physical Department, University College, London, to [Joseph] Larmor | 17 October 1904 |
| NLB/30/533 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 10 April 1905 |
| NLB/30/140 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Fellow of the Royal Society | 3 February 1905 |
| NLB/28/266 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | 8 February 1904 |
| NLB/28/257 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 5 February 1904 |
| NLB/30/299 | Copy letter from Joseph Larmor, to Alfred Barnard Basset, Fellow of the Royal Society | 28 February 1905 |
| NLB/30/262 | Copy letter from Joseph Larmor, to Reverend F H Jackson | 17 February 1905 |
| NLB/30/623 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 18 April 1905 |
| MC/19/570 | Letter from [Augustus Edward Hough] Love, Oxford, to [Joseph] Larmor | 25 April 1904 |
| NLB/29/173 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary of the Royal Society | 20 July 1904 |
| NLB/30/237 | Copy letter from Joseph Larmor, to Captain Ettrick William Creak, [Fellow of the Royal Society] | 16 February 1905 |
| NLB/30/447 | Copy letter from Joseph Larmor, to George Clarke Simpson, [Fellow of the Royal Society] | 23 March 1905 |
| NLB/30/298 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph] Larmor, Secretary, Royal Society | 28 February 1905 |
| MC/19/808 | Letter from [Herbert Hall] Turner, to [Joseph] Larmor | 4 December 1904 |
| NLB/30/290 | Copy letter from Joseph Larmor to Archibald Geikie, to the Under Secretary of State, India Office | 25 February 1905 |
| NLB/30/362 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Fellow of the Royal Society | 11 March 1905 |
| NLB/30/329 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 6 March 1905 |
| NLB/30/243 | Copy letter from Joseph Larmor and Archibald Geikie, to the Vice Chancellor, University of Oxford | 17 February 1905 |
| NLB/31/272 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, [Fellow of the Royal Society] | 18 July 1905 |
| MC/20/363 | Letter from Felix Semon, 39 Wimpole Street, Cavendish Square, London, to Dr [Joseph] Larmor | 21 February 1905 |
| NLB/30/387 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | [16 March 1905] |
| NLB/31/666 | Copy letter from Joseph Larmor, to T E Heath | 27 October 1905 |
| NLB/28/337 | Copy letter from Joseph Larmor, to Professor Alfred George Greenhill | 18 February 1904 |
| NLB/33/33 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 19 June 1906 |
| NLB/30/576 | Copy letter from Joseph Larmor, to Professor Marcus Hartog | 14 April 1905 |
| NLB/30/410 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Secretary] | 21 March 1905 |
| NLB/30/453 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 27 March 1905 |
| NLB/33/270 | Copy letter from Joseph Larmor, to Owen Willans Richardson, [Fellow of the Royal Society], Trinity College, Cambridge | 26 July 1906 |
| NLB/31/156 | Copy letter from [Joseph Larmor], to Dr Velay | 4 July 1905 |
| NLB/29/554 | Copy letter from Joseph Larmor, to Colonel [David] Bruce, [Fellow of the Royal Society] | 3 November 1904 |
| NLB/30/585 | Copy letter from Joseph Larmor, to S C Sheppard and Charles Edward Kenneth Mees, [Fellow of the Royal Society] | April 1905 |
| NLB/44/150 | Copy letter from Joseph Larmor to Mr William Gifford | 17 May 1911 |
| NLB/30/472 | Copy letter from Joseph Larmor, to Sir William Turner Thiselton-Dyer | 30 March 1905 |
| NLB/30/582 | Copy letter from Joseph Larmor, to Dr John Allen Harker, [Fellow of the Royal Society] | April 1905 |
| NLB/31/677 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 31 October 1905 |
| NLB/31/117 | Copy letter from Joseph Larmor, to Dr Bastian | 24 June 1905 |
| NLB/30/510 | Copy letter from Joseph Larmor, to Dr P E Shaw | 6 April 1905 |
| NLB/43/97 | Copy letter from Joseph Larmor, to Lieutenant Colonel The Honorable Sir William Carington | 4 November 1910 |
| NLB/30/512 | Copy letter from Joseph Larmor, to Mr William Robert Bousfield, [Fellow of the Royal Society] | 6 April 1905 |
| NLB/41/201 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 30 October 1909 |
| NLB/34/528 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 2 February 1907 |
| NLB/30/511 | Copy letter from Joseph Larmor to George Walker Walker, [Fellow of the Royal Society] | 6 April 1905 |
| MC/24/140 | Letter from Arthur [William] Rücker, Everington House, Newbury, to [Joseph] Larmor, [Royal Society] | 19 September 1909 |
| NLB/30/580 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 14 April 1905 |
| NLB/28/488 | Copy letter from [Robert William Frederick Harrison], to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 14 March 1904 |
| MC/20/245 | Letter from [Andrew] Noble, Elswick Works, Newcastle upon Tyne, to Professor [Joseph] Larmor | 19 June 1905 |
| NLB/30/735 | Copy letter from Joseph Larmor, to William Bate Hardy, Fellow of the Royal Society | 18 May 1905 |
| NLB/30/630 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 19 April 1905 |
| NLB/30/599 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, Engineering Standards Committee, 28 Victoria Street, S.W. | 14 April 1905 |
| NLB/30/688 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 8 May 1905 |
| NLB/28/461 | Copy letter from Joseph Larmor, to Sir William de Wiveleslie Abney, [Fellow of the Royal Society] | 10 March 1904 |
| NLB/30/591 | Copy letter from Joseph Larmor, to Professor Harold Baily Dixon, Fellow of the Royal Society | 14 April 1905 |
| NLB/30/626 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 19 April 1905 |
| NLB/30/850 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 31 May 1905 |
| NLB/29/724 | Copy letter from Joseph Larmor, to R T Dixon, Racketta, Hythe, Hampshire | 1 December 1904 |
| NLB/30/648 | Copy letter from Archibald Geikie and Joseph Larmor, to the Chairman, Indian Advisory Committee, Sir William Turner Thiselton-Dyer, Fellow of the Royal Society | 2 May 1905 |
| NLB/30/660 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Fellow of the Royal Society] | 3 May 1905 |
| NLB/30/680 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph] Larmor, Secretary, Royal Society | 6 May 1905 |
| NLB/29/410 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 10 October 1904 |
| NLB/43/152 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 12 November 1910 |
| NLB/37/436 | Copy letter from Joseph Larmor to Silvanus Thompson | 18 March 1908 |
| NLB/29/575 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 8 November 1904 |
| NLB/42/425 | Copy letter from Joseph Larmor to H [Hugh] L [Longbourne] Callendar | 10 June 1910 |
| NLB/31/135 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 June 1905 |
| NLB/31/255 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | 15 July 1905 |
| NLB/30/875 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 5 June 1905 |
| NLB/34/98 | Copy letter from Joseph Larmor, to Professor [Hugh Longbourne] Callender, [Fellow of the Royal Society] | 27 November 1906 |
| NLB/30/868 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 3 June 1905 |
| NLB/30/865 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 2 June 1905 |
| NLB/30/784 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 23 May 1905 |
| NLB/30/807 | Copy letter from Joseph Larmor, to Miss L Digby | May 1905 |
| NLB/31/39 | Copy letter from Joseph Larmor, to [Richard Tetley] Glazebrook, [Fellow od the Royal Society] | 15 June 1905 |
| NLB/29/521 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 31 October 1904 |
| MC/20/424 | Letter from [Michael Rogers] Oldfield Thomas, British Museum (Natural History), Cromwell Road, London, to Professor [Joseph] Larmor | 24 July 1905 |
| MC/20/341 | Letter from Arthur Schuster, Victoria Park, Manchester, to [Joseph] Larmor | 26 February 1905 |
| NLB/31/131 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, [Fellow of the Royal Society] | 28 June 1905 |
| NLB/31/200 | Copy letter from Joseph Larmor, to Professor Dr Georg Hermann Quincke, Foreign Member Royal Society, Heidelberg | 8 July 1905 |
| NLB/31/114 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 26 June 1905 |
| MC/19/551 | Letter from [Joseph] Larmor, to [Robert William Frederick Harrison] | 6 October 1904 |
| NLB/31/233 | Copy letter from Joseph Larmor, to Sir Andrew Noble, [Fellow of the Royal Society] | 12 July 1905 |
| NLB/31/64 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 16 June 1905 |
| NLB/29/433 | Copy letter from Joseph Larmor, to The Secretary, Scottish Antarctic Expedition | 14 October 1904 |
| NLB/31/224 | Copy letter from [Joseph Larmor], to Professor Armstrong | 11 July 1905 |
| NLB/29/605 | Copy letter from Joseph Larmor, to E T Dixon | 11 November 1904 |
| NLB/31/176 | Copy letter from Joseph Larmor and Archibald Geikie, to the Honorary Secretary of the National Antarctic Expedition | July 1905 |
| NLB/31/251 | Copy letter from Archibald Geikie and Joseph Larmor, to Mr Bernacchi | [14 July 1905] |
| NLB/31/659 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 27 October 1905 |
| NLB/31/190 | Copy letter from Joseph Larmor to Archibald Geikie, to the Under Secretary of State for India, India Office | 7 July 1905 |
| NLB/31/235 | Copy letter from Joseph Larmor, to John Henry Poynting, [Fellow of the Royal Society] | 12 July 1905 |
| NLB/31/234 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society | 12 July 1905 |
| NLB/31/116 | Copy letter from Joseph Larmor, to Dr Veley | 24 June 1905 |
| NLB/31/269 | Copy letter from Joseph Larmor, to Sir William Henry Broadbent, [Fellow of the Royal Society] | 18 July 1905 |
| NLB/31/223 | Copy letter from Joseph Larmor, to Dr [Ludwig] Mond, [Fellow of the Royal Society] | 11 July 1905 |
| NLB/31/716 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 3 November 1905 |
| NLB/31/249 | Copy letter from Joseph Larmor, to Hugh Longbourne Callendar, [Fellow of the Royal Society] | 13 July 1905 |
| NLB/31/740 | Copy letter from Robert Frederick William Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 November 1905 |
| NLB/38/314 | Copy letter from Joseph Larmor, to Professor T Turner | 14 July 1908 |
| NLB/28/866 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 June 1904 |
| NLB/31/267 | Copy letter from Joseph Larmor, to Professor Charles Jasper Joly, Fellow of the Royal Society, Secretary, Royal Irish Academy | 17 July 1905 |
| NLB/31/307 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 28 July 1905 |
| NLB/31/312 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 July 1905 |
| NLB/29/835 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 19 December 1904 |
| NLB/29/479 | Copy letter from Joseph Larmor, to The Secretary, Scottish Antarctic Expedition | 21 October 1904 |
| NLB/34/706 | Copy letter from Joseph Larmor, to E W J Smith | 27 February 1907 |
| NLB/31/566 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 11 October 1905 |
| NLB/33/313 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 1 August 1906 |
| NLB/29/886 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 5 January 1905 |
| MC/20/59 | Letter from [Frank] Horton, St John's College, Cambridge, to Professor [Joseph] Larmor | 12 January 1905 |
| NLB/31/569 | Copy letter from Joseph Larmor, to Professor R C Maclaurin, Wellington, New Zealand | 12 October 1905 |
| NLB/31/500 | Copy letter from Robert William Frederick Harrison, Professor Joseph Larmor, [Secretary of the Royal Society] | 30 September 1905 |
| NLB/31/474 | Copy letter from Joseph Larmor, to Lord Rayleigh [John William Strutt, Fellow of the Royal Society] | 25 September 1905 |
| NLB/31/549 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 9 October 1905 |
| NLB/31/638 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 24 October 1905 |
| NLB/31/583 | Copy letter from Joseph Larmor and Archibald Geikie, to [an unknown correspondent] | 11 October 1905 |
| NLB/29/590 | Copy letter from Joseph Larmor, to Hugh Longbourne Callendar, [Fellow of the Royal Society] | [November 1904] |
| NLB/31/871 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Secretary, Royal Society | 27 November 1905 |
| NLB/29/818 | Copy letter from Joseph Larmor, to Cambridge University Press | 14 December 1904 |
| NLB/31/679 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 31 October 1905 |
| NLB/41/231 | Copy letter from Joseph Larmor, to The Deputy Master of the Mint | 4 November 1909 |
| NLB/29/723 | Copy letter from Joseph Larmor, to Sir Robert Stawell Ball, Fellow of the Royal Society | 1 December 1904 |
| NLB/29/616 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 14 November 1904 |
| NLB/31/672 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 31 October 1905 |
| NLB/31/892 | Copy letter from [Joseph Larmor], to the Secretary, His Majesty's Treasury | 30 November 1905 |
| NLB/31/736 | Copy letter from Robert Frederick William Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 November 1905 |
| NLB/33/452 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 3 September 1906 |
| MC/21/42 | Letter from Henry [Taylor] Bovey, 46 Threadneedle Street, to Professor [Joseph] Larmor | 17 June 1906 |
| NLB/31/298 | Copy letter from Joseph Larmor, to the Assistant Under Secretary, Foreign Office | 26 July 1905 |
| NLB/31/227 | Copy letter from Joseph Larmor, to Charles Chree, [Fellow of the Royal Society] | 11 July 1905 |
| NLB/31/550 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Secretary, Royal Society] | 9 October 1905 |
| MC/20/103 | Memoranda to Professor [Joseph] Larmor, Secretary of the Royal Society | 5 January 1905 |
| NLB/31/623 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, His Majety's Treasury | 20 October 1905 |
| MC/21/137 | Postcard from [George Howard] Darwin, Cambridge, to Professor [Joseph] Larmor, Secretary of the Royal Society | [28 January 1906] |
| NLB/31/721 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 6 November 1905 |
| NLB/33/201 | Copy letter from [Joseph Larmor], to Sir Joseph Norman Lockyer, Fellow of the Royal Society, 16 Penywern Road, W. | 16 July 1906 |
| NLB/32/609 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 23 April 1906 |
| NLB/33/778 | Copy letter from Joseph Larmor, to the Deputy Master of the Mint | 1 November 1906 |
| NLB/29/661 | Copy letter from Joseph Larmor, to The Secretary, Iron and Steel Institute | 20 November 1904 |
| NLB/33/61 | Copy letter from Joseph Larmor, to Mr Shortbread | 22 June 1906 |
| NLB/29/713 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 29 November 1904 |
| NLB/33/512 | Copy letter from Joseph Larmor, to Dr [Edward] Divers, [Fellow of the Royal Society] | 18 September 1906 |
| NLB/36/75 | Copy letter from Joseph Larmor, to William Cecil Dampier-Whetham, Fellow of the Royal Society | 3 August 1907 |
| NLB/37/481 | Copy letter from Joseph Larmor to Professor Wilson | 26 March 1908 |
| NLB/31/876 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 November 1905 |
| NLB/33/226 | Copy letter from Joseph Larmor, to Mr [J W] Gifford | 20 July 1906 |
| NLB/33/776 | Copy letter from Joseph Larmor, to General Sir Dighton Probyn | 1 November 1906 |
| NLB/31/855 | Copy letter from Joseph Lamor, to [Richard Tetley] Glazebrook, Fellow of the Royal Society | 24 November 1905 |
| NLB/31/870 | Copy letter from Joseph Larmor and Archibald Geikie, to His Excellency the Russian Ambassador | 27 November 1905 |
| NLB/33/225 | Copy letter from Joseph Larmor, to Dr Gilbert Thomas Walker, Fellow of the Royal Society | 19 July 1906 |
| NLB/33/670 | Copy letter from Joseph Larmor, to Major Edmond Herbert Grove-Hills, Secretary, Joint Eclipse Committee, care of Royal Astronomical Society | 18 October 1906 |
| NLB/31/802 | Copy letter from Archibald Geikie and Joseph Larmor, to the Secretary, Society of Chemical Industry | 15 November 1905 |
| NLB/31/803 | Copy letter from Joseph Larmor, to the Agent General for South Australia | 16 November 1905 |
| NLB/33/85 | Copy letter from Joseph Larmor, to Mr W A Douglas-Rudge | 27 June 1906 |
| NLB/31/905 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 5 December 1905 |
| NLB/31/923 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 8 December 1905 |
| NLB/33/90 | Copy letter from Joseph Larmor, to the Editors of 'The Bulletin of the American Mathematical Society' and 'Science' | 28 June 1906 |
| NLB/33/99 | Copy letter from Joseph Larmor, to Professor Sydney Young, Fellow of the Royal Society | July 1906 |
| NLB/33/294 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 30 July 1906 |
| NLB/33/95 | Copy letter from Jospeh Larmot, to the Editor, 'The Athanaeum' | 28 June 1906 |
| NLB/33/94 | Copy letter from Joseph Larmor, to the Editor, 'American Journal of Science' | [28 June 1906] |
| NLB/33/88 | Copy letter from Joseph Larmor, to the Editor, 'The Astrophysical Journal' | 23 June 1906 |
| NLB/33/113 | Copy letter from Joseph Larmor, to the Under Secretary of State, India Office | 29 June 1906 |
| NLB/33/146 | Copy letter from [Joseph Larmor], to W G Duffield, Physical Laboratory, Manchester | 6 July 1906 |
| NLB/33/93 | Copy letter from Joseph Larmor, to the Editor, 'Physical Review' | 28 June 1906 |
| NLB/34/101 | Copy letter from Joseph Larmor, to His Excellency, the Italian Ambassador | 27 November 1906 |
| NLB/33/92 | Copy letter from Joseph Larmor, to the Editor, 'American Naturalist' | 28 June 1906 |
| NLB/33/234 | Copy letter from Joseph Larmor, to the Under Secretary of State for India | 20 July 1906 |
| NLB/46/374 | Copy letter from Joseph Larmor, to Messrs Dulau & Company | 23 July 1912 |
| NLB/29/872 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | January 1905 |
| NLB/33/188 | Copy letter from Joseph Larmor, to Dr Lucas[?] | July 1906 |
| NLB/29/844 | Copy letter from Joseph Larmor, to Charles Vernon Boys, Fellow of the Royal Society | 20 December 1904 |
| NLB/33/114 | Copy letter from Joseph Larmor, to the Under Secretary of State, India Office | 29 June 1906 |
| NLB/33/221 | Copy letter from Joseph Larmor, to Dr Lazarus Barlow | 19 July 1906 |
| NLB/33/173 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society, St Helen's Bay, Belfast | 10 July 1906 |
| NLB/33/145 | Copy letter from [Joseph Larmor], to Dr F H Scott, Physical Laboratory, University College, W.C. | 6 July 1906 |
| NLB/33/148 | Copy letter from [Joseph Larmor], to the Honorary Treasurer, Anthropological Institute, 3 Hanover Square, W. | 5 July 1906 |
| NLB/33/774 | Copy letter from Joseph Larmor, to Miss Hertha Ayrton | 1 November 1906 |
| NLB/33/433 | Copy letter from [Joseph Larmor], to the Under Secretary of State, Colonial Office | 30 August 1906 |
| MC/19/613 | Letter from [Peter] Chalmers Mitchell, Secretary of the Zoological Society of London, 3 Hanover Square, to [Joseph] Larmor, St John's College, Cambridge | 31 October 1904 |
| NLB/33/409 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 27 August 1906 |
| NLB/33/288 | Copy letter from Joseph Larmor and Archibald Geikie, Secretary, National Antarctic Expedition, Finance Committee | 24 July 1906 |
| NLB/29/906 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 11 January 1905 |
| NLB/33/264 | Copy letter from Joseph Larmor, to Dr [Edward] Divers, [Fellow of the Royal Society] | 25 July 1906 |
| NLB/33/149 | Copy letter from [Joseph Larmor], to the Director, Variable Star Section, British Astronomical Association | 5 July 1906 |
| NLB/34/411 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 16 January 1907 |
| NLB/33/777 | Copy letter from Joseph Larmor, to the Deputy Master of the Mint | 1 November 1906 |
| NLB/33/443 | Copy letter from Joseph Larmor, to Mr Birtwistle, Helen's Bay, Belfast | 31 August 1906 |
| NLB/33/360 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | 14 August 1906 |
| NLB/29/838 | Copy letter from Joseph Larmor, to Sir Robert Bell, Fellow of the Royal Society | 20 December 1904 |
| NLB/36/123 | Copy letter from Joseph Larmor, to Hugh Frank Newall, [Fellow of the Royal Society] | 19 August 1907 |
| NLB/29/845 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 20 December 1904 |
| NLB/33/511 | Copy letter from Joseph Larmor, to Dr Gifford | 18 September 1906 |
| NLB/33/445 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 1 September 1906 |
| NLB/33/454 | Copy letter from P L S [?], to Professor Joseph Larmor, Secretary, Royal Society | 4 September 1906 |
| NLB/33/378 | Copy letter from Joseph Larmor, to Professor Masson | 17 August 1906 |
| NLB/33/440 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 30 August 1906 |
| NLB/46/516 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 15 August 1912 |
| NLB/32/617 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 14 April 1906 |
| NLB/33/403 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 24 August 1906 |
| NLB/36/112 | Copy letter from Joseph Larmor, to Dr Armstrong, St John's College, Cambridge | 16 August 1907 |
| NLB/38/615 | Copy letter from Joseph Larmor, to Duffield | 8 October 1908 |
| NLB/36/99 | Copy letter from Joseph Larmor, to Dr Drysdale, St John's College, Cambridge | 11 August 1907 |
| NLB/33/476 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 10 September 1906 |
| NLB/33/775 | Copy letter from Joseph Larmor, to Professor Wilhelm Rudolf Fittig | 1 November 1906 |
| NLB/33/488 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 11 September 1906 |
| NLB/33/772 | Copy letter from Joseph Larmor, to Professor Hugo de Vries, Foreign Member, Royal Society | 1 November 1906 |
| NLB/33/482 | Copy letter from Theodore E James, to Professor Joseph Larmor, Fellow of the Royal Society | 12 September 1906 |
| NLB/33/372 | Copy letter from A H White, to Professor Joseph Larmor, Royal Society | 16 August 1906 |
| NLB/33/388 | Copy letter from [Joseph Larmor], to the Secretary, Crown Agents for the Colonies, Whitehall Gardens, S.W. | 22 August 1906 |
| NLB/33/484 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | 12 September 1906 |
| NLB/33/495 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, [Fellow of the Royal Society] | 12 September 1906 |
| NLB/33/485 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 12 September 1906 |
| NLB/33/499 | Copy letter from Joseph Larmor, to Sir George Clarke | 14 September 1906 |
| NLB/36/68 | Copy telegram from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | [1 August 1907] |
| NLB/33/771 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 1 November 1906 |
| NLB/41/479 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, Fellow of the Royal Society | 21 December 1909 |
| NLB/33/579 | Copy letter from Joseph Larmor, to Mr J W Gifford | 2 October 1906 |
| CD/25/3 | Letter from Karl Pearson, 7 Well Road, Hampstead, to Joseph Larmor, Secretary of the Royal Society | 17 February 1902 |
| NLB/36/56 | Copy letter from F T [Towle] to Professor Joseph Larmor, Secretary, Royal Society | 30 July 1907 |
| NLB/33/773 | Copy letter from Joseph Larmor, to Professor Elias Metchnikoff, Foreign Member, Royal Society | 1 November 1906 |
| NLB/34/226 | Copy letter from Joseph Larmor, to The Secretary, Meteorological Office | 13 December 1906 |
| NLB/36/22 | Copy letter from F T, to Professor Joseph Larmor, Secretary, Royal Society | 25 July 1907 |
| NLB/36/122 | Copy letter from Joseph Larmor, to Professor Gray | 19 August 1907 |
| NLB/33/624 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph] Larmor, Secretary, Royal Society | 10 October 1906 |
| NLB/33/748 | Copy letter from an unknown correspondent, to Professor Joseph Larmor, Secretary, Royal Society | 30 October 1906 |
| NLB/34/388 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 11 January 1907 |
| NLB/36/110 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary, Royal Society | 17 August 1907 |
| NLB/36/126 | Copy letter from Joseph Larmor, to Professor L Becker, Glasgow | 19 August 1907 |
| NLB/36/116 | Copy letter from Joseph Larmor, to Professor J Milne, St John's College, Cambridge | 16 August 1907 |
| NLB/34/604 | Copy letter from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | 13 February 1907 |
| NLB/41/708 | Copy letter from Joseph Larmor, to Charles Herbert Lees, Fellow of the Royal Society | 8 February 1910 |
| NLB/36/7 | Copy letter from Joseph Larmor, to P D Pedersen | 22 July 1907 |
| NLB/34/60 | Copy letter from Joseph Larmor, to His Excellency, The German Ambassador, 9 Carlton House Terrace, S.W. | November 1906 |
| NLB/34/61 | Copy letter from Joseph Larmor, to His Excellency, The French Ambassador, Albert Gate House, Hyde Park, W. | 22 November 1906 |
| NLB/36/43 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, [Fellow of the Royal Society] | 26 July 1907 |
| NLB/36/42 | Copy letter from Joseph Larmor, to Professor Beattie | 27 July 1907 |
| NLB/39/134 | Copy letter from Joseph Larmor to Professor [Beve] | 1 December 1908 |
| NLB/34/129 | Copy letter from Archibald Geikie and Joseph Larmor, to The Secretary, H M Treasury | 1 December 1906 |
| NLB/36/95 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 10 August 1907 |
| NLB/34/126 | Copy letter from Archibald Geikie and Joseph Larmor, to The Secretary, H M Treasury | 1 December 1906 |
| NLB/36/125 | Copy letter from Joseph Larmor, to Professor Henry Edward Armstrong, [Fellow of the Royal Society] | 19 August 1907 |
| NLB/34/607 | Copy letter from Joseph Larmor, to Richard Threlfall, Fellow of the Royal Society | 13 February 1907 |
| NLB/34/195 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 11 December 1906 |
| NLB/36/222 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, [Fellow of the Royal Society] | 23 September 1907 |
| NLB/34/168 | Copy letter from Joseph Larmor, to H R A Mallock, 3 Victoria Street, S.W. | 8 December 1906 |
| NLB/34/179 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society | 6 December 1906 |
| NLB/36/167 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 August 1907 |
| NLB/34/463 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 26 January 1907 |
| NLB/34/260 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 18 December 1906 |
| NLB/34/271 | Copy letter from Joseph Larmor, to The Secretary, H M Treasury | 20 December 1906 |
| NLB/34/184 | Copy letter from Joseph Larmor and Archibald Geikie, to William Napier Shaw, Fellow of the Royal Society | 10 December 1906 |
| NLB/42/452 | Copy letter from Joseph Larmor to Sir Arthur Hicks | 14 June 1910 |
| NLB/34/285 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 21 December 1906 |
| NLB/34/224 | Copy letter from Joseph Larmor, to W R Cooper | 13 December 1906 |
| NLB/44/200 | Copy letter from Joseph Larmor to [Andrew] Gray | 24 May 1911 |
| NLB/39/101 | Copy letter from Joseph Larmor to Commander L Chetuyard, RN | 26 November 1908 |
| NLB/37/95 | Copy letter from [Joseph] Larmor to Professor J [John] Perry FRS | 24 January 1908 |
| NLB/37/410 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, John's Cambridge | March 1908 |
| NLB/34/601 | Copy letter from Joseph Larmor, to Professor Harold Baily Dixon, Fellow of the Royal Society | 13 February 1907 |
| NLB/34/223 | Copy letter from Joseph Larmor, to The Secretary, Royal Astronomical Society | 13 December 1906 |
| NLB/34/735 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 4 March 1907 |
| NLB/34/657 | Copy letter from Joseph Larmor, to Lord Kelvin [William Thomson], Fellow of the Royal Society | 21 February 1907 |
| NLB/34/341 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 7 January 1907 |
| NLB/42/178 | Copy letter from Robert William Frederick Harrison to 'The Treasurer' | 20 April 1910 |
| NLB/34/643 | Copy letter from Joseph Larmor, to Alfred Barnard Basset, Fellow of the Royal Society | 21 February 1907 |
| NLB/41/554 | Copy letter from Joseph Larmor, to William Mitchinson Hicks, Fellow of the Royal Society | 12 January 1910 |
| NLB/34/417 | Copy letter from Joseph Larmor, to Sir William Henry Preece, Fellow of the Royal Society | 17 January 1907 |
| NLB/34/448 | Copy letter from Joseph Larmor, to The Secretary, H M Treasury | 24 January 1907 |
| NLB/34/557 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 8 February 1907 |
| NLB/38/610 | Copy letter from Joseph Larmor, to Professor [John] Joly, Fellow of the Royal Society | 8 October 1908 |
| NLB/44/186 | Copy letter from Joseph Larmor to Professor G Chrystal | 23 May 1911 |
| NLB/37/184 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 11 February 1908 |
| MC/22/461 | Letter from Richard Threlfall, 30 George Road, Edgbaston, Birmingham, to [Joseph] Larmor | 17 February 1097 |
| NLB/39/523 | Copy letter from The Royal Society to Professor [Joseph] Larmor, Secretary of the Royal Society | January 1909 |
| NLB/34/566 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 5 February 1907 |
| NLB/34/563 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 8 February 1907 |
| NLB/37/86 | Copy letter from Joseph Larmor, Sectretary of the Royal Society to Dr George [Howard] Darwin FRS | 24 January 1908 |
| NLB/40/268 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Sec RS | 15 May 1909 |
| NLB/34/781 | Copy letter from Joseph Larmor, to Professor [Walter Noel] Hartley, [Fellow of the Royal Society] | 7 March 1907 |
| NLB/34/738 | Copy letter from Robert William Frederick Harrison, to Professsor Joseph Larmor, Secretary of the Royal Society | 4 March 1907 |
| NLB/37/97 | Copy letter from Joseph Larmor to W G Duffield | 25 January 1908 |
| NLB/34/778 | Copy letter from Joseph Larmor, to Dr Filon | 6 March 1907 |
| NLB/37/94 | Copy letter from [Joseph] Larmor to Professor Kempson | 24 January 1908 |
| NLB/41/227 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 4 November 1909 |
| NLB/39/503 | Copy letter from Robert William Frederick Harrison to Malloch | 28 January 1909 |
| NLB/37/65 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Secretary of the Royal Society | 20 January 1908 |
| NLB/34/743 | Copy letter from Joseph Larmor, to Major Mansell | 4 March 1907 |
| NLB/34/741 | Copy letter from Joseph Larmor, to Professor [Walter Noel] Hartley, [Fellow of the Royal Society] | 4 March 1907 |
| MC/19/549 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick Harrison] | 1 October [1904] |
| NLB/38/747 | Copy letter from Joseph Larmor, to Sir Joseph Norman Lockyer, Fellow of the Royal Society | [October 1908] |
| NLB/38/13 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 2 June 1908 |
| NLB/39/175 | Copy letter from Joseph Larmor to Sir William Ramsay | 5 December 1908 |
| NLB/37/356 | Copy letter from Robert William Frederick Harrison to Professor J H Poynting, Fellow of the Royal Society | 6 March 1908 |
| NLB/37/248 | Copy letter from Joseph Larmor to Professor Petravel | 22 February 1908 |
| NLB/37/23 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Secretary of the Royal Society | 10 January 1908 |
| NLB/34/811 | Copy letter from Joseph Larmor, to Sir T Wrightson | 12 March 1907 |
| NLB/37/24 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 13 January 1908 |
| NLB/37/73 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor. Secretary of the Royal Society | 20 January 1908 |
| NLB/38/82 | Copy letter from Robert William Frederick Harrison, to Joseph Larmor, Secretary of the Royal Society, St Johns College, Cambridge | [June 1908] |
| NLB/37/116 | Copy letter from Joseph Larmor to Dr W [William] N [Napier] Shaw FRS | 24 January 1908 |
| NLB/39/501 | Copy letter from Joseph Larmor to Professor [Sorber] | 28 January 1909 |
| NLB/38/585 | Copy letter from Archibald Geikie and Joseph Larmor, to The Director of Military Operations | 1 October 1908 |
| NLB/39/130 | Copy letter from Joseph Larmor to Dr L [Ludwig] Mond | 1 December 1908 |
| NLB/38/413 | Copy letter from Joseph Larmor, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 29 July 1908 |
| NLB/45/330 | Copy letter from Joseph Larmor to Professor Dally | 14 February 1912 |
| NLB/37/128 | Copy letter from Robert William Frederick Harrison to Dr W [William] N [Napier] Shaw FRS | 29 January 1908 |
| NLB/39/110 | Copy letter from Joseph Larmor to [Henry Reginald] A [Arnulph] Mallock, Fellow of the Royal Society | November 1908 |
| NLB/37/183 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 10 February 1908 |
| NLB/38/47 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 5 June 1908 |
| NLB/43/233 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 25 November 1910 |
| MC/22/430 | Letter from J H Smith, Holyrood, Malone Road, Belfast, to [Joseph] Larmor | 10 December 1907 |
| NLB/40/224 | Copy letter from Joseph Larmor to Professor Lawes | 4 May 1909 |
| NLB/38/2 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 1 June 1908 |
| NLB/38/221 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 2 July 1908 |
| NLB/37/681 | Copy letter from Robert William Frederick Harrison to Sir John | 30 April 1908 |
| NLB/40/32 | Copy letter from Joseph Larmor to G [George] B [Ballard] Matthews | 25 March 1909 |
| NLB/37/880 | Copy Letter from Joseph Larmor to Dr Bottomley | 28 May 1908 |
| NLB/39/137 | Copy letter from Archibald Geikie to Admiral Field | 1 December 1908 |
| NLB/37/546 | Copy letter from Joseph Larmor to Dr J Kuny | 4 April 1908 |
| NLB/37/532 | Copy letter from Joseph Larmor to Professor F [Frederick] T [Thomas] Trouton | 3 April 1908 |
| NLB/37/757 | Copy letter from Robert William Frederick Harrison to Professor J Larmor, Secretary of the Royal Society | 9 May 1908 |
| NLB/37/573 | Copy letter from Robert William Frederick Harrison to Sir T W Holderness, CSI, India Office | 7 April 1908 |
| NLB/37/321 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 2 March 1908 |
| NLB/39/652 | Copy letter from Joseph Larmor to Professor N [Niels Henrik David] Bohr, Copenhagen | 19 February 1909 |
| NLB/37/536 | Copy letter from Joseph Larmor to Professor H [Henry] E [Edward] Armstrong | 3 April 1908 |
| NLB/39/304 | Copy letter from Robert William Frederick Harrison to Professor Joseph Larmor | 23 December 1908 |
| NLB/37/439 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 20 March 1908 |
| NLB/37/417 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 16 March 1908 |
| NLB/44/373 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Secretary RS | 30 June 1911 |
| NLB/37/499 | Copy letter from Robert William Frederick Harrison to Dr D [Dukinfield] H [Henry] Scott, Fellow of the Royal Society | 30 March 1908 |
| NLB/37/488 | Copy letter from Robert William Frederick Harrison to Professor Wm [William] Hicks, Fellow of the Royal Society, Chairman of the Physics & Chemistry Sectional Committee | 27 March 1908 |
| NLB/37/574 | Copy letter from Robert William Frederick Harrison to Professor H [Henry] E [Edwad] Armstrong, Fellow of the Royal Society, Manisty Grange, Keswick | 7 April 1908 |
| NLB/37/507 | Copy letter from Robert William Frederick Harrison to The Right Honorable The Lord Rayleigh OM, President of the Royal Society | 31 March 1908 |
| NLB/38/202 | Copy letter from Joseph Larmor, to Frederick Thomas Trouton, Fellow of the Royal Society | 25 June 1908 |
| NLB/39/109 | Copy letter from Joseph Larmor to J W Bispham, Battersea Polytechnic, SW | November 1908 |
| NLB/37/604 | Copy letter from Robert William Frederick Harrison to Professor W [William] N [Noel] Hartley, Fellow of the Royal Society, Royal College of Science, Dublin, Ireland | 11 April 1908 |
| NLB/41/596 | Copy letter from Joseph Larmor, to William James Stewart Lockyer | 19 January 1910 |
| NLB/37/881 | Copy Letter from Joseph Larmor to Professor J H Poynting | 28 May 1908 |
| NLB/38/612 | Copy letter from Joseph Larmor, to Professor William Mitchison Hicks, Fellow of the Royal Society | 8 October 1908 |
| NLB/39/288 | Copy letter from Joseph Larmor to Mr Plimmer | Undated |
| NLB/38/110 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 16 June 1908 |
| NLB/39/30 | Copy letter from Joseph Larmor to [William Napier] Shaw | 14 November 1908 |
| NLB/39/56 | Copy letter from Joseph Larmor to Professor [William Mitchinson] Hicks | 18 November 1908 |
| NLB/41/684 | Copy letter from Joseph Larmor, to Frederick Thomas Trouton, Fellow of the Royal Society | 3 February 1910 |
| NLB/37/701 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Fellow of the Royal Society, Secretary of the Royal Society | 4 May 1908 |
| NLB/37/655 | Copy letter from Robert William Frederick Harrison to Professor G [George] M [Minchin] Minchin, Fellow of the Royal Society | 28 April 1908 |
| NLB/37/640 | Copy letter from Robert William Frederick Harrison to Professor J Larmor, Fellow of the Royal Society, Secretary of the Royal Society | 23 April 1908 |
| NLB/37/647 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Fellow of the Royal Society, Secretary of the Royal Society | 24 April 1908 |
| NLB/37/661 | Copy letter from Robert William Frederick Harrison to Professor Ernest Wilson | 29 April 1908 |
| NLB/37/684 | Copy letter from Robert William Frederick Harrison to Professor W [Walter] N [Noel] Hartley. Fellow of the Royal Society | 30 April 1908 |
| NLB/41/229 | Copy letter from Joseph Larmor, to General The Right Honorable Sir Dighton Probyn | 4 November 1909 |
| NLB/37/689 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks, Fellow of the Royal Society, Chairman of the Physics & Chemistry Sectional Committee | 1 May 1908 |
| NLB/38/137 | Copy letter from Joseph Larmor, to The Secretary to the Agent General for the Cape of Good Hope, 100 Victoria Street, S.W. | 18 June 1908 |
| NLB/39/123 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph[ Larmor, Secretary of the Royal Society, St John's College, Cambridge | 28 November 1908 |
| NLB/38/294 | Copy letter from Robert William Frederick Harrison, to Joseph Larmor, Secretary of the Royal Society | 10 July 1908 |
| NLB/38/201 | Copy letter from Joseph Larmor, to John Henry Poynting, Fellow of the Royal Society | [June 1908] |
| NLB/37/889 | Copy Letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 29 May 1908 |
| NLB/37/882 | Copy Letter from Joseph Larmor to Professor W [William Mitchinson] Hicks | 29 May 1908 |
| NLB/42/388 | Copy letter from Joseph Larmor, Secretary RS to Prof [John] Stanley Gardiner FRS | 1 June 1910 |
| NLB/39/78 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] LArmor, Secretary of the Royal Society | 23 November 1908 |
| NLB/38/695 | Copy letter from Joseph Larmor and Archibald Geikie, to Professor William Henry Perkin, Fellow of the Royal Society | 22 October 1908 |
| MC/24/156 | Letter from Adam Sedgwick, 4 Ganmer Road, Cambridge, to The Assistant Secretary, [Royal Society] | 6 April 1909 |
| NLB/39/500 | Copy letter from Joseph Larmor to Professor [Andrew Russell] Forsyth | Undated |
| NLB/37/355 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 6 March 1908 |
| NLB/37/898 | Copy Letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 1 June 1908 |
| NLB/37/890 | Copy Letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 29 May 1908 |
| NLB/38/288 | Copy letter from Joseph Larmor, to Dr Edgar | 9 July 1908 |
| NLB/38/357 | Copy letter from Joseph Larmor, to Lady Eliot | 20 July 1908 |
| NLB/39/49 | Copy letter from Joseph Larmor to [Richard Tetley] Glazebrook | 17 November 1908 |
| NLB/39/80 | Copy letter from Robert William Frederick Harrison to Professor Joseph Larmor, Secretary of the Royal Society | 23 November 1908 |
| NLB/39/152 | Copy letter from Robert William Frederick Harrison to Professor G [George] E [Ellery] Hale | 3 December 1908 |
| NLB/46/170 | Copy letter from Joseph Larmor, to Messrs Dulau & Company | 20 June 1912 |
| NLB/39/481 | Copy letter from The Robert William Frederick Harrison to Dr Joseph Larmor, Secretary of the Royal Society | 26 January 1909 |
| NLB/39/136 | Copy letter from Joseph Larmor to Professor Callendar | 1 December 1908 |
| NLB/38/280 | Copy letter from Joseph Larmor, to [Arthur Mason] Worthington, Fellow of the Royal Society | 8 July 1908 |
| NLB/38/421 | Copy letter from Robert William Frederick Harrison, to Professor Larmor, Secretary of the Royal Society | 31 July 1908 |
| NLB/39/105 | Copy letter from Robert William Frederick Harrison to E [Ernest] Gold, St John's College, Cambridge | 26 November 1908 |
| NLB/39/132 | Copy letter from Joseph Larmor to Dr Ludwig Mond, Fellow of the Royal Society | December 1908 |
| NLB/38/381 | Copy letter from Archibald Geikie and Joseph Larmor, to The Secretary, National Antarctic Expedition (Finance Committee), c/o Royal Geographical Society, 1 Savile Row, W. | 22 July 1908 |
| NLB/38/694 | Copy letter from Joseph Larmor and Archibald Geikie, to Sir James Stirling, Fellow of the Royal Society | 22 October 1908 |
| NLB/39/355 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 8 January 1909 |
| NLB/39/125 | Copy letter from Joseph Larmor to H Stanley Allen | 1 December 1908 |
| NLB/38/289 | Copy letter from Joseph Larmor, to Francis Henry Neville, Fellow of the Royal Society | 9 July 1908 |
| NLB/39/180 | Copy letter from Robert William Frederick Harrison to Professor F [Francis] W [Wall] Oliver, Fellow of the Royal Society | 7 December 1908 |
| NLB/46/277 | Copy letter from Joseph Larmor, to [S J Veiles] | 4 July 1912 |
| NLB/39/739 | Copy letter from Joseph Larmor to The Earl of Berkeley | 4 March 1909 |
| NLB/42/636 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 21 July 1910 |
| MC/23/285 | Letter from [Henry Reginald Arnulph] Mallock, 6 Creswell Gardens, SW, to Professor [Joseph] Larmor, [Royal Society] | 28 November 1908 |
| NLB/39/633 | Copy letter from Robert William Frederick Harrison to J [Joseph] Larmor | 18 February 1909 |
| NLB/38/514 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 20 August 1908 |
| NLB/38/623 | Copy letter from Joseph Larmor, to Professor Ralph Allen Sampson, Fellow of the Royal Society | 13 October 1908 |
| NLB/38/364 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 21 July 1908 |
| NLB/38/511 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 19 August 1908 |
| NLB/38/743 | Copy letter from Joseph Larmor, to Professor Eugen Goldstein | 29 October 1908 |
| NLB/38/676 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 21 October 1908 |
| NLB/39/328 | Copy letter from Robert William Frederick Harrison to Professor Joseph Larmor, Secretary of the Royal Society | 5 January 1909 |
| NLB/39/285 | Copy letter from Robert William Frederick Harrison to James W McBain, University College | 21 December 1908 |
| NLB/40/15 | Copy letter from Robert William Frederick Harrison to Dr R [Richard] T [Tetley] Glazebrook FRS | 22 March 1909 |
| NLB/39/384 | Copy letter from Robert William Frederick Harrison to Sir David Gill, KCB, Fellow of the Royal Society | 13 January 1909 |
| NLB/38/331 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 16 July 1908 |
| NLB/42/5 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor | 5 March 1909 |
| NLB/38/329 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 16 July 1908 |
| NLB/38/443 | Copy telegram from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society, c/o Andrew Noble, Ardkinglas, Cairndow | [August 1908] |
| NLB/39/524 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 1 February 1909 |
| NLB/39/616 | Copy letter from Robert William Frederick Harrison to Professor A [Augustus] E [Edward] H [Hough] Love, Fellow of the Royal Society | 13 February 1909 |
| NLB/39/675 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 23 February 1909 |
| NLB/39/580 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 9 February 1909 |
| NLB/41/226 | Copy letter from Joseph Larmor, to Professor Sir James Dewar, Fellow of the Royal Society | 4 November 1909 |
| NLB/38/405 | Copy letter from Joseph Larmor, to [Walter] Rosenhain, [Fellow of the Royal Society] | 29 July 1908 |
| NLB/39/787 | Copy letter from Joseph Larmor to The Under Secretary of State, The Home Office | 13 March 1909 |
| NLB/43/76 | Copy letter from Joseph Larmor, to Sir William Ramsay, Fellow of the Royal Society | 2 November 1910 |
| NLB/38/557 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary of the Royal Society | 22 September 1908 |
| NLB/40/140 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 23 April 1909 |
| NLB/39/760 | Copy letter from Joseph Larmor to Sir Howard Srull | 9 March 1909 |
| MC/19/555 | Memo from [Joseph] Larmor, St John's College, Cambridge | 24 October 1904 |
| NLB/40/445 | Copy letter from Robert William Frederick Harrison to Professor H [Hugh Longbourne] Callendar FRS | 9 June 1909 |
| NLB/39/809 | Copy letter from Joseph Larmor to Dr S E Sheppard | 19 March 1909 |
| NLB/39/725 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Secretary of the Royal Society | 1 March 1909 |
| MC/23/365 | Letter from Walter [Matthew] Gibson, [Secretary of His Majesty's] Privy Purse, Privy Purse Office, Buckingham Palace, to Professor [Joseph] Larmor, [Secretary], Royal Society | 17 November 1908 |
| NLB/38/472 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 7 August 1908 |
| NLB/38/470 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 5 August 1908 |
| NLB/43/96 | Copy letter from Joseph Larmor, to The Deputy Master of the Mint | 4 November 1910 |
| NLB/38/501 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 14 August 1908 |
| NLB/39/761 | Copy letter from Joseph Larmor to C E S Phillips | 9 March 1909 |
| NLB/38/576 | Copy letter from Joseph Larmor, to Professor Frederick Thomas Trouton, Fellow of the Royal Society | 29 September 1908 |
| NLB/38/493 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 13 August 1908 |
| NLB/38/492 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 13 August 1908 |
| NLB/43/109 | Copy letter from Joseph Larmor, to Dr Henry Frederick Baker, Fellow of the Royal Society | 7 November 1910 |
| NLB/38/689 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr Charles Chree, Fellow of the Royal Society | 22 October 1908 |
| NLB/40/143 | Copy letter from Robert William Frederick Harrison to Professor A [Albert] C [Charles] Seward FRS | 23 April 1909 |
| NLB/38/651 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 19 October 1908 |
| NLB/39/793 | Copy letter from Robert William Frederick Harrison to Professor J [John] Joly, Fellow of the Royal Society | 18 March 1909 |
| NLB/38/574 | Copy letter from Joseph Larmor, to Duffield | 22 September 1908 |
| NLB/41/588 | Copy letter from Joseph Larmor to Dr A H Gibson | 18 January 1910 |
| NLB/40/100 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Sec RS | 7 April 1909 |
| NLB/44/202 | Copy letter from Joseph Larmor to [The Earl of] Berkeley | 25 May 1911 |
| NLB/38/556 | Copy letter from Theodore E James, to Professor Joseph Larmor, Secretary of the Royal Society | 21 September 1908 |
| NLB/40/46 | Copy letter from Robert William Frederick Harrison to Professor Henderson | 29 March 1909 |
| NLB/40/141 | Copy letter from Robert William Frederick Harrison to The Reverend B I Corder, Radnage Rectory, Wallingford | 22 April 1909 |
| NLB/38/611 | Copy letter from Joseph Larmor, to Professor [Sydney] Young, [Fellow of the Royal Society] | 8 October 1908 |
| NLB/40/294 | Copy letter from Joseph Larmor to [Elasshad] | 4 May 1909 |
| NLB/40/55 | Copy letter from Robert William Frederick Harrison to Professor A [Arthur] Schuster FRS | 31 March 1909 |
| NLB/38/737 | Copy letter from Joseph Larmor, to The Deputy Master of the Mint | 29 October 1908 |
| NLB/41/451 | Copy letter from Joseph Larmor, to [George Walker] Walker, [Fellow of the Royal Society] | 17 December 1909 |
| NLB/40/90 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Sec RS | 5 April 1909 |
| NLB/40/179 | Copy letter from Joseph Larmor to Professor [Augustus Edward Hough] Love | 26 April 1909 |
| MC/19/553 | Memo from [Joseph] Larmor, St John's College | 14 October [1904] |
| NLB/40/178 | Copy letter from Joseph Larmor to [Charles] Chree | 26 April 1909 |
| NLB/40/684 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Secretary RS | 17 Jul 1909 |
| NLB/38/696 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr John Scott Haldane, Fellow of the Royal Society | 22 October 1908 |
| NLB/38/720 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 26 October 1908 |
| NLB/40/512 | Copy letter from Joseph Larmor, Secretary RS [Secretary of the Royal Society] to The Secretary, HM Treasury | 18 June 1909 |
| NLB/38/691 | Copy letter from Joseph Larmor and Archibald Geikie, to Sir David Gill, Fellow of the Royal Society | 22 October 1908 |
| NLB/40/153 | Copy letter from Robert William Frederick Harrison to Sir Bejamin Stone, MP | 26 April 1909 |
| NLB/40/362 | Copy letter from Joseph Larmor to J W Nicholson, Trinity College, Cambridge | 27 May 1909 |
| NLB/40/215 | Copy letter from Joseph Larmor to The Secretary, Royal Astronomical Society | 3 May 1909 |
| NLB/40/155 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Sec RS | 26 April 1909 |
| NLB/46/853 | Copy letter from Joseph Larmor, to A R Waller, Cambridge | 12 November 1912 |
| NLB/40/243 | Copy letter from Joseph Larmor to General N Artamanoff | 5 May 1909 |
| NLB/40/447 | Copy letter from Robert William Frederick Harrison to Dr Dawson Turner, 37 George Square, Edinburgh | 9 June 1909 |
| NLB/40/408 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Sec RS | 3 June 1909 |
| NLB/40/299 | Copy letter from Joseph Larmor and John Rose Bradford to A [Alfred] F [Fernadez] Yarrow | 21 May 1909 |
| NLB/40/378 | Copy letter from Robert William Frederick Harrison to A [Alfred] E [Edwin] H [Howard] Tutton FRS | 28 May 1909 |
| NLB/40/459 | Copy letter from the Royal Society to Professor [Joseph] Larmor, Johns, Cambridge | June 1909 |
| NLB/41/822 | Copy letter from Joseph Larmor, to [unknown recipient] | 2 March 1910 |
| NLB/40/681 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 16 July 1909 |
| NLB/38/738 | Copy letter from Joseph Larmor, to General The Right Honorable Sir Dighton Probyn | 29 October 1908 |
| NLB/43/88 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 4 November 1910 |
| NLB/44/380 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 1 July 1911 |
| NLB/43/195 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 17 November 1910 |
| NLB/38/741 | Copy letter from Joseph Larmor, to Professor William Augustus Tilden, Fellow of the Royal Society | 29 October 1908 |
| NLB/38/739 | Copy letter from Joseph Larmor, to Dr Alfred Russel Wallace, Fellow of the Royal Society | 29 October 1908 |
| NLB/40/424 | Copy letter from Robert William Frederick Harrison to Professor S [Silvanus] P [Phillips] Thompson FRS | 7 June 1909 |
| NLB/41/551 | Copy letter from Joseph Larmor, to Henry Edward Armstrong, Fellow of the Royal Society | 12 January 1910 |
| NLB/40/437 | Copy letter from Robert William Frederick Harrison to Sir David Gill KCB, FRS | 8 June 1909 |
| NLB/42/659 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary RS | 27 July 1910 |
| NLB/45/44 | Copy letter from Joseph Larmor to Dr H Forster Morley | 11 December 1911 |
| NLB/40/588 | Copy letter from Robert William Frederick Harrison to Harrison & Sons | 30 June 1909 |
| NLB/43/592 | Copy letter from Joseph Larmor and John Rose Bradford, to Professor Henry Edward Armstrong, Fellow of the Royal Society | 18 February 1911 |
| NLB/41/501 | Copy letter from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | 4 January 1910 |
| NLB/40/688 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary RS | 9 July 1909 |
| NLB/40/578 | Copy letter from Robert William Frederick Harrison to Professor J [John] H [Henry] Poynting FRS | 29 June 1909 |
| NLB/40/739 | Copy letter from Joseph Larmor to [William Mitchinson] Hicks | 27 July 1909 |
| NLB/40/127 | Copy letter from Robert William Frederick Harrison to C E S Phillips, Castle House, Sooters Hill, Kent | 22 April 1909 |
| NLB/40/649 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 14 July 1909 |
| NLB/43/59 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 1 November 1910 |
| NLB/40/41 | Copy letter from Robert William Frederick Harrison to Professor A [Arthur] Schuster FRS | 26 March 1909 |
| NLB/42/105 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 5 April 1910 |
| NLB/41/419 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 10 December 1909 |
| NLB/42/642 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 23 July 1910 |
| NLB/41/37 | Copy letter from Joseph Larmor, to Sir David Gill, Fellow of the Royal Society | 29 September 1909 |
| NLB/43/700 | Copy letter from Joseph Larmor, to W E Bousfield | 14 March 1911 |
| NLB/43/675 | Copy letter from Joseph Larmor and John Rose Bradford, to The Secretary H M Treasury | 8 March 1911 |
| NLB/40/816 | Copy letter from Robert William Frederick Harrison to Professor A [Augustus] E [Edward] H [Hough] Love FRS, Chairman of the Mathematical Sectional Committee | 31 August 1909 |
| NLB/43/520 | Copy letter from Joseph Larmor, to H Forster Morley | 2 February 1911 |
| NLB/40/775 | Copy letter from Joseph Larmor, Secretary RS [Secretary of the Royal society] to The Agent General for South Africa | 11 August 1909 |
| NLB/42/329 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec Rs | 24 May 1910 |
| NLB/43/170 | Copy letter from Joseph Larmor, to Francis Henry Neville, Fellow of the Royal Society, Letchworth | [November 1910] |
| NLB/43/331 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 12 December 1910 |
| NLB/41/230 | Copy letter from Joseph Larmor, to Dr George William Hill, Foreign Member of the Royal Society | 4 November 1909 |
| NLB/43/261 | Copy letter from Joseph Larmor, to Sir William Ramsay, Fellow of the Royal Society | 1 December 1910 |
| NLB/44/99 | Copy letter from Joseph Larmor to A Bruce Joy | 4 May 1911 |
| NLB/44/404 | Copy letter from Joseph Larmor to Arford | 6 July 1911 |
| NLB/42/2 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Sec RS | 4 March 1909 |
| MC/25/9 | Letter from Hertha Ayrton, 41 Norfolk Square, Hyde Park, W, to Mr [Robert] Harrison, [Royal Society] | 4 July 1910 |
| NLB/42/86 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary RS | 23 March 1910 |
| NLB/43/673 | Copy letter from Joseph Larmor, to W E Bousfield | 8 March 1911 |
| NLB/44/403 | Copy letter from Joseph Larmor to Oakley | 5 July 1911 |
| NLB/42/104 | Copy letter from A [Alfred] H [Hastings] White to Sir Joseph Larmor, Sec RS | 31 March 1910 |
| NLB/41/228 | Copy letter from Joseph Larmor, to The Deputy Master of the Mint | 4 November 1909 |
| NLB/42/159 | Copy letter from Joseph Larmor Sec RS to The Lord Rosse | 14 April 1910 |
| NLB/45/338 | Copy letter from Joseph Larmor to [Hardcastle] | 16 February 1912 |
| NLB/43/714 | Copy letter from Dr Joseph Larmor, to Dr Charles Chree, Fellow of the Royal Society | 16 March 1911 |
| NLB/41/424 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 10 December 1909 |
| NLB/41/222 | Copy letter from Joseph Larmor, to Dr William Napier Shaw, Fellow of the Royal Society | 4 November 1909 |
| NLB/41/286 | Copy letter from Joseph Larmor, to The Under Secretary of State, Colonial Office | 15 November 1909 |
| NLB/41/763 | Copy letter from Joseph Larmor, to Professor Harold Baily Dixon, Fellow of the Royal Society | 22 February 1910 |
| NLB/42/542 | Copy letter from Joseph Larmor to Mrs [Hertha] Ayrton | 1 July 1910 |
| NLB/42/260 | Copy letter from Joseph Larmor, Secretary RS to Professor W [William] H [Hicks] FRS, Leamhurst, Ivy Parl, Sheffield | 3 May 1910 |
| NLB/42/134 | Copy letter from Robert William Frederick Harrison to Dr [Charles] Chree | 11 April 1910 |
| NLB/43/429 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 10 January 1911 |
| NLB/42/204 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Sec RS | 25 April 1910 |
| NLB/42/90 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 23 March 1910 |
| NLB/41/462 | Copy letter from Joseph Larmor, to Joseph Norman Lockyer, Fellow of the Royal Society | 17 December 1909 |
| NLB/43/495 | Copy letter from Joseph Larmor, to Professor [John Sealy Edward] Townsend, Fellow of the Royal Society | 28 January 1911 |
| NLB/42/163 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 15 April 1910 |
| NLB/44/828 | Copy letter from Joseph Larmor to [Bertram] Hopkinson | 22 November 1911 |
| NLB/41/366 | Copy letter from Joseph Larmor, to The Director, The Meteorological Office | 30 November 1909 |
| NLB/41/266 | Copy letter from Joseph Larmor, to [Henry Cabourn Pocklington, Fellow of the Royal Society] | 19 November 1909 |
| NLB/44/201 | Copy letter from Joseph Larmor to [Joseph] Barcroft | 24 May 1911 |
| NLB/42/177 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Sec RS | 19 April 1910 |
| NLB/41/439 | Copy letter from Joseph Larmor, to The Secretary, The Board of Trade | 14 December 1909 |
| NLB/42/561 | Copy letter from Joseph Larmor, Secretary RS [Secretary of the Royal Society] to The Secretary, HM Treasury | 8 July 1910 |
| NLB/42/205 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 25 April 1910 |
| NLB/43/601 | Copy letter from Joseph Larmor, to [Edward Neville da Costa] Andrade | 21 February 1911 |
| NLB/43/104 | Copy letter from Joseph Larmor, to Professor Heinrich Rubens | 7 November 1910 |
| NLB/42/264 | Copy letter from Robert William Frederick Harrison to Dr C [Charles] Chree, Old Deer Park, Richmond, Surrey | 3 May 1910 |
| NLB/41/425 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 10 December 1909 |
| NLB/41/707 | Copy letter from Joseph Larmor, to W A D Rudge | 8 February 1910 |
| NLB/42/277 | Copy letter from Robert William Frederick Harrison to Miss L F Homfray, 16 Church Row, Hampstead | 4 May 1910 |
| NLB/42/396 | Copy letter from Joseph Larmor to Professor Hartley | 3 June 1910 |
| NLB/41/427 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 10 December 1909 |
| NLB/41/742 | Copy letter from Joseph Larmor, to Dr Charles Chree, Fellow of the Royal Society | 19 February 1910 |
| NLB/42/231 | Copy letter from Joseph Larmor to Dr C [Charles] Chree FRS | 28 April 1910 |
| NLB/41/712 | Copy letter from Joseph Larmor, to Arthur Schuster, Fellow of the Royal Society | 19 February 1910 |
| NLB/41/633 | Copy letter from Joseph Larmor, to Dr Alfred North Whitehead, Fellow of the Royal Society | 26 January 1910 |
| NLB/41/605 | Copy letter from [Joseph Larmor], to The Secretary, H M Treasury | 21 January 1910 |
| NLB/42/259 | Copy letter from Joseph Larmor to [Karl] Pearson | May 3 1910 |
| NLB/42/267 | Copy letter from Robert William Frederick Harrison to S A Saunder, Sec RAS | 4 May 1910 |
| NLB/42/298 | Copy letter from Robert William Frederick Harrison to W Geoffrey Duffield, Physical Laboratories, Physical Laboratories, The University, Manchester | 12 May 1910 |
| NLB/42/648 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary RS | 26 July 1910 |
| NLB/42/400 | Copy letter from Robert William Frederick Harrison to Dr R [Richard] T [Tetley] Glazebrook FRS, Bushy House, Teddington, Middlesex | 4 June 1910 |
| NLB/41/481 | Copy letter from Joseph Larmor, to The Secretary, H M Treasury | 21 December 1909 |
| NLB/42/469 | Copy letter from Joseph Larmor to W [William] M [Mitchinson] Hicks | 18 June 1910 |
| NLB/41/813 | Copy letter from Joseph Larmor, to Professor Arthur Schuster, Fellow of the Royal Society | 28 February 1910 |
| NLB/41/589 | Copy letter from Joseph Larmor, to William Duddell, Fellow of the Royal Society | 18 January 1910 |
| NLB/41/811 | Copy letter from Joseph Larmor, to Charles Scott Sherrington, Fellow of the Royal Society | 28 February 1910 |
| NLB/42/387 | Copy letter from Joseph Larmor, Secretary RS to Colonel S [Sidney] G [Gerald] Burrard FRS, Dehra Dun, India | 2 June 1910 |
| MC/25/151 | Letter from David Ross McCord, Advocate,Temple Grove, Montreal, to Sir Joseph Larmor, [Secretary], Royal Society, Burlington House | 21 February 1910 |
| NLB/42/391 | Copy letter from Joseph Larmor, Sec RS to the Right Honourable, The Secretary of State for the Home Department | 3 June 1910 |
| NLB/41/809 | Copy letter from Joseph Larmor to, Francis Darwin, Fellow of the Royal Society | 28 February 1910 |
| NLB/41/766 | Copy letter from Joseph Larmor, to W E Garforth | 23 February 1910 |
| NLB/41/762 | Copy letter from Joseph Larmor, to The Secretary, The Institution of Mining Engineers | 22 February 1910 |
| NLB/42/353 | Copy letter from John Rose Bradford, Secretary RS to The Under Secretary of State for India, India Office | 27 May 1910 |
| NLB/42/279 | Copy letter from Joseph Larmor, Sec Rs [Secretary of the Royal Society] to The Director, National Physical Laboratory | 4 May 1910 |
| NLB/42/367 | Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Sec RS | 28 May 1910 |
| NLB/42/357 | Copy letter from Robert William Frederick Harrison to Dr H Forster Morley | 27 May 1910 |
| NLB/42/427 | Copy letter from Robert William Frederick Harrison to Sir Archibald Geikie KCB, PRS | 10 June 1910 |
| NLB/41/768 | Copy letter from Joseph Larmor, to Sir Henry H Cunynghame, Barn Ridge, South Nutfield | 22 February 1910 |
| NLB/41/765 | Copy letter from Joseph Larmor, to Dr John Scott Haldane, Fellow of the Royal Society | 22 February 1910 |
| NLB/44/314 | Copy letter from Joseph Larmor to [Richard Tetley] Glazebrook | 15 June 1911 |
| NLB/43/103 | Copy letter from Joseph Larmor, to Sir Francis Galton, Fellow of the Royal Society | 7 November 1910 |
| NLB/44/22 | Copy letter from Joseph Larmor to [William Napier] Shaw | 25 April 1911 |
| NLB/41/632 | Copy letter from Joseph Larmor, to Sir William Ramsay, Fellow of the Royal Society | 26 January 1910 |
| NLB/41/814 | Copy letter from Joseph Larmor, to Professor G Chrystal, General Secretary, Royal Society of Edinburgh | 28 February 1910 |
| NLB/42/514 | Copy letter from Robert William Frederick Harrison to Dr H Forster Morley | 24 June 1910 |
| NLB/41/644 | Copy letter from Joseph Larmor, to Professor John Newport Langley, Fellow of the Royal Society | 26 January 1910 |
| NLB/45/735 | Copy letter from Joseph Larmor to Messrs Neil & Co, Edinburgh | 1 May 1912 |
| NLB/43/620 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 24 February 1911 |
| NLB/43/75 | Copy letter from Joseph Larmor, to G W Walker | 3 November 1910 |
| NLB/41/782 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 25 February 1910 |
| NLB/41/634 | Copy letter from Joseph Larmor, to The Secretary of the British Science Guild | 26 January 1910 |
| NLB/43/390 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 21 December 1910 |
| NLB/41/810 | Copy letter from Joseph Larmor, to Sir Arthur Rucker, Fellow of the Royal Society | 28 February 1910 |
| NLB/41/812 | Copy letter from Joseph Larmor, to Professor Herbert Hall Turner, Fellow of the Royal Society | 28 February 1910 |
| NLB/41/821 | Copy letter from Joseph Larmor, to [unknown recipient] | 3 March 1910 |
| NLB/44/402 | Copy letter from Joseph Larmor to [The Earl of] Berkeley | 6 July 1911 |
| NLB/41/764 | Copy letter from Joseph Larmor, to Professor John Cadman, [Fellow of the Royal Society], The University, Birmingham | 22 February 1910 |
| NLB/42/512 | Copy letter from Robert William Frederick Harrison to Professor H [Henry] E [Edward] Armstrong FRS | 24 June 1910 |
| NLB/43/301 | Copy letter from Joseph Larmor, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society | 8 December 1910 |
| NLB/42/1 | Copy letter from Joseph Larmor, Secretary RS to The Under Secretary of State for India | 5 March 1909 |
| NLB/42/605 | Copy letter from Sir Joseph Larmor, Secretary RS [Secretary of the Royal Society] to Unknown Recipient | July 1910 |
| NLB/43/236 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 26 November 1910 |
| NLB/43/48 | Copy letter from Joseph Larmor, to [William Mitchinson] Hicks, Fellow of the Royal Society | 27 October 1910 |
| NLB/43/110 | Copy letter from Joseph Larmor, to Professor John Ambrose Fleming, Fellow of the Royal Society | 7 November 1910 |
| NLB/43/201 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 18 November 1910 |
| NLB/45/520 | Copy letter from Joseph Larmor to C T R Wilson | 20 March 1912 |
| NLB/43/12 | Copy letter from Joseph Larmor, to Sir William Crookes, Foreign Secretary of the Royal Society | 22 October 1910 |
| NLB/44/183 | Copy letter from Joseph Larmor, Secretary of the Royal Society to The General Secretary, The Royal Society of Edinburgh | 23 May 1911 |
| NLB/46/472 | Copy letter from Joseph Larmor, to the Secretary, The Board of Trade | 2 August 1912 |
| NLB/44/318 | Copy letter from Joseph Larmor to [The Earl of] Berkeley | 16 June 1911 |
| NLB/44/701 | Copy letter from Joseph Larmor to Robert Hadfield | 26 October 1911 |
| NLB/43/406 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 3 January 1911 |
| NLB/43/259 | Copy letter from Joseph Larmor, to G W Walker | 1 December 1910 |
| NLB/44/13 | Copy letter from Joseph Larmor, Secretary of the Royal Society to The Under Secretary of State, Colonial Office | 14 April 1911 |
| NLB/42/809 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 15 October 1910 |
| NLB/43/73 | Copy letter from Joseph Larmor and John Rose Bradford, to The Lord Brassey | 1 November 1910 |
| NLB/43/17 | Copy letter from Joseph Larmor, to The Under Secretary of State for India | 22 October 1910 |
| NLB/43/95 | Copy letter from Joseph Larmor, to The Deputy Master of the Mint | 4 November 1910 |
| NLB/43/6 | Copy letter from Joseph Larmor, to Professor George Downing Liveing, Fellow of the Royal Society | 20 October 1910 |
| NLB/43/100 | Copy letter from Robert William Frederick Harrison, to Professor Sir Joseph Larmor, Secretary of the Royal Society | 5 November 1910 |
| NLB/42/819 | Copy letter from Joseph Larmor to [Alexander] Scott | 18 October 1910 |
| NLB/43/151 | Copy letter from Joseph Larmor, to Professor John [Sealy Edward] Townsend, Fellow of the Royal Society | 12 November 1910 |
| NLB/46/257 | Copy letter from Sir Joseph Larmor [written by Robert William Frederick Harrison], to W H Bragg, University of Leeds | 2 July 1912 |
| NLB/44/319 | Copy letter from Joseph Larmor to [Augustus Edward Hough] Love | 16 June 1911 |
| NLB/44/475 | Copy letter from Joseph Larmor to [S] Chapman | 14 July 1911 |
| NLB/44/702 | Copy letter from Joseph Larmor to [F J] Selby | 26 October 1911 |
| NLB/43/262 | Copy letter from Joseph Larmor, to [Arnulph Henry Reginald] Mallock, Fellow of the Royal Society | 1 December 1910 |
| NLB/46/806 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 5 November 1912 |
| NLB/45/821 | Copy letter from Joseph Larmor to [William McFadden] Orr | 16 May 1912 |
| NLB/44/185 | Copy letter from Joseph Larmor to Professor Sir J [Joseph] J [John] Thomson FRS | 23 May 1911 |
| NLB/45/242 | Copy letter from Joseph Larmor to Professor Petravel | 25 January 1912 |
| NLB/43/153 | Copy letter from Joseph Larmor, to Professor John [Sealy Edward] Townsend, Fellow of the Royal Society | 12 November 1910 |
| NLB/43/107 | Copy letter from Joseph Larmor, to Professor Theodore William Richards, [Fellow of the Royal Society] | 7 November 1910 |
| NLB/43/227 | Copy letter from Joseph Larmor, to His Excellency, The American Ambassador | 24 November 1910 |
| NLB/44/555 | Copy letter from Unknown Correspondent to Sir J [Joseph] Larmor, Sec RS [Secretary of the Royal Society] | 4 August 1911 |
| NLB/43/365 | Copy letter from Joseph Larmor, to William Ramsay, Fellow of the Royal Society | 16 December 1910 |
| NLB/44/405 | Copy letter from Joseph Larmor to [Frederick Thomas] Trouton, Fellow of the Royal Society | 6 July 1911 |
| NLB/43/302 | Copy letter from Joseph Larmor, to Professor [John Sealy Edward] Townsend, Fellow of the Royal Society | 8 December 1910 |
| NLB/43/361 | Copy letter from Joseph Larmor, to Major [Edmond Herbert Grove] Hills, [Fellow of the Royal Society] | 16 December 1910 |
| NLB/43/366 | Copy letter from Joseph Larmor, to [John Sealy Edward] Townsend, Fellow of the Royal Society | 16 December 1910 |
| NLB/46/487 | Copy letter from Joseph Larmor, to F A Harris | 8 August 1912 |
| MC/26/245 | Letter from [William Napier] Shaw, Meteorological Office, South Kensington, London, S.W, to [Robert William Frederick] Harrison, Secretary of the Royal Society, Burlington House, W | 9 September 1911 |
| NLB/43/575 | Copy letter from Joseph Larmor, to Professor F Rudio, Zurich | 9 February 1911 |
| NLB/44/513 | Copy letter from Joseph Larmor to Unknown Recipient | 26 July 1911 |
| NLB/46/662 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 11 October 1912 |
| NLB/45/9 | Copy letter from Joseph Larmor to [George Howard] Darwin | 6 December 1911 |
| NLB/43/349 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 14 December 1910 |
| NLB/43/359 | Copy letter from Joseph Larmor, to The Principal Assistant Secretary, Technological Branch, Board of Education | 16 December 1910 |
| NLB/45/743 | Copy letter from Joseph Larmor to [Thomas] Holderness | 1 May 1912 |
| NLB/44/400 | Copy letter from Joseph Larmor to [S] Chapman | 4 July 1911 |
| NLB/45/107 | Copy letter from Joseph Larmor to the Secretary, Admiralty, Whitehall, SW | 30 December 1911 |
| NLB/43/602 | Copy letter from Joseph Larmor, to Professor Gibson | 21 February 1911 |
| NLB/46/30 | Copy letter from Joseph Larmor, to Sir David Gill, Fellow of the Royal Society | 23 May 1912 |
| NLB/46/55 | Copy letter from Joseph Larmor, to Augustus Vernon Harcourt, Fellow of the Royal Society | 5 June 1912 |
| NLB/43/498 | Copy letter from Joseph Larmor, to Professor Ernest Howard Griffiths, Fellow of the Royal Society | 28 January 1911 |
| NLB/43/587 | Copy letter from John Rose Bradford and Joseph Larmor, to The Treasurers of the National Antarctic Expedition Fund | 16 February 1911 |
| NLB/44/550 | Copy letter from Joseph Larmor to Professor H [Hugh] L [Longbourne] Callendar FRS | 4 August 1911 |
| NLB/43/594 | Copy letter from Joseph Larmor, to The Reverend P J Kirkby | 16 February 1911 |
| NLB/43/630 | Copy letter from Joseph Larmor, to John Young Buchanan, Fellow of the Royal Society | 28 February 1911 |
| NLB/45/42 | Copy letter from Joseph Larmor to R Kaye | 11 December 1911 |
| MC/26/73 | Letter from [Frank Watson] Dyson, Royal Observatory, Greenwich, London, S.E, to Mr [Robert] Harrison, [Royal Society] | 15 November 1911 |
| NLB/46/448 | Copy letter from Joseph Larmor, to Professor Walker | 1 August 1912 |
| NLB/45/51 | Copy letter from Joseph Larmor to [Ernest Howard] Griffiths | 12 December 1911 |
| NLB/44/746 | Copy letter from Joseph Larmor to C [Charles] T [Thomson] R [Rees] Wilson FRS | 3 November 1911 |
| NLB/44/741 | Copy letter from Joseph Larmor to the Deputy Master of the Mint | 3 November 1911 |
| NLB/44/742 | Copy letter from Joseph Larmor to the Deputy Master of the Mint | 3 November 1911 |
| NLB/44/745 | Copy letter from Joseph Larmor to Unknown Recipient | 3 November 1911 |
| NLB/43/710 | Copy letter from Joseph Larmor, to Dr Charles Chree, Fellow of the Royal Society | 14 March 1911 |
| NLB/43/488 | Copy letter from John Rose Bradford and Joseph Larmor, to The Secretary of State for Foreign Affairs | 24 January 1911 |
| NLB/46/53 | Copy letter from Joseph Larmor, to Charles Vernon Boys, Fellow of the Royal Society | 5 June 1912 |
| NLB/43/629 | Copy letter from Joseph Larmor, to Professor John Perry, Fellow of the Royal Society | 28 February 1911 |
| NLB/43/640 | Copy letter from Joseph Larmor, to Mrs [Hertha] Ayrton | 2 March 1911 |
| NLB/45/39 | Copy letter from Joseph Larmor to F [Frank] W [Watson] Dyson FRS, Astronomer Royal | 11 December 1911 |
| MC/26/257 | Letter from [William Turner] Thiselton-Dyer, The Ferns, Witcombe, Gloucester, to [Joseph] Larmor, [Royal Society] | 15 March 1911 |
| NLB/45/59 | Copy letter from Joseph Larmor to Wilson L Fox | 14 December 1911 |
| NLB/45/509 | Copy letter from Joseph Larmor to Professor Silvanus [Phillips] Thompson | 15 March 1912 |
| NLB/45/243 | Copy letter from Joseph Larmor to T C Porter | 25 January 1912 |
| NLB/46/512 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 15 August 1912 |
| NLB/45/458 | Copy letter from Joseph Larmor to [William Mitchinson] Hicks | 7 March 1912 |
| NLB/45/354 | Copy letter from Joseph Larmor to T J Selby | 15 February 1912 |
| NLB/45/43 | Copy letter from Joseph Larmor to The Director, National Physical Laboratory | 11 December 1911 |
| NLB/48/241 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Fellow of the Royal Society | 3 June 1913 |
| NLB/45/355 | Copy letter from Joseph Larmor to [H F] Morley | 15 February 1912 |
| NLB/45/102 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 21 December 1911 |
| NLB/45/362 | Copy letter from Joseph Larmor to the General Secretary, The Royal Society of South Africa, Capetown | 21 February 1912 |
| NLB/45/822 | Copy letter from Joseph Larmor to [L G N] Filon | 16 May 1912 |
| NLB/45/413 | Copy letter from Joseph Larmor to [Hardcastle] | 29 February 1912 |
| NLB/46/373 | Copy letter from Joseph Larmor, to Professor J C Fisher, c/o Canadian Office, Victoria Street, S.W. | 23 July 1912 |
| NLB/46/452 | Copy letter from Joseph Larmor, to Dr [Gilbert Thomas] Walker, Fellow of the Royal Society | 1 August 1912 |
| NLB/46/453 | Copy letter from Joseph Larmor, to [Lord Sanderson] | 1 August 1912 |
| NLB/46/237 | Copy letter from Joseph Larmor, to Professor Thomas Gregor Brodie, Fellow of the Royal Society | 28 June 1912 |
| NLB/46/400 | Copy letter from Joseph Larmor, to P E Shaw | 24 July 1912 |
| NLB/45/736 | Copy memorandum by Joseph Larmor | 1 May 1912 |
| NLB/45/617 | Copy letter from Joseph Larmor to Sir James Bell, Town Clerk, Guildhall | 16 April 1912 |
| NLB/46/458 | Copy letter from Joseph Larmor, to Dr [Alfred North] Whitehead, Fellow of the Royal Society | 1 August 1912 |
| NLB/46/518 | Copy letter from Joseph Larmor, to Professor Edward Charles Cyril Baly, Fellow of the Royal Society | 30 August 1912 |
| NLB/45/357 | Copy letter from Joseph Larmor to unknown recipient | 20 February 1912 |
| NLB/46/477 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 6 August 1912 |
| MC/20/339 | Letter from Arthur Schuster, Victoria Park, Manchester, to [Joseph] Larmor | 4 January 1905 |
| NLB/45/827 | Copy letter from Joseph Larmor to the Agent General for Queensland | 17 May 1912 |
| NLB/46/336 | Copy letter from Joseph Larmor, to Arthur Schuster, Fellow of the Royal Society | 10 July 1912 |
| NLB/45/525 | Copy letter from Joseph Larmor to Major E H Hills FRS, Joint Permanent Eclipse Committee | 21 March 1912 |
| NLB/46/459 | Copy letter from Joseph Larmor, to Dr P E Shaw | 1 August 1912 |
| NLB/46/476 | Copy letter from Joseph Larmor, to [Henry Edward] Armstrong, Fellow of the Royal Society | 6 August 1912 |
| NLB/45/828 | Copy letter from Joseph Larmor to the Agent General for South Australia | 17 May 1912 |
| NLB/45/753 | Copy letter from Joseph Larmor to Major Hills | 3 May 1912 |
| NLB/45/614 | Copy letter from Joseph Larmor to Sir A [Arthur] Rucker | 12 April 1912 |
| NLB/45/438 | Copy letter from Joseph Larmor to the Secretary, the Admiralty | 5 March 1912 |
| NLB/45/746 | Copy letter from Joseph Larmor to Professor [Arthur] Schuster | 2 May 1912 |
| NLB/45/596 | Copy letter from Joseph Larmor to Sir O [Oliver] Lodge FRS | 2 April 1912 |
| NLB/45/415 | Copy letter from Joseph Larmor to Principal Griffiths | 29 February 1912 |
| NLB/46/829 | Copy letter from Joseph Larmor, to The Keeper, H M Privy Purse | 7 November 1912 |
| NLB/45/414 | Copy letter from Joseph Larmor to Professor Petravel | 29 February 1912 |
| NLB/45/745 | Copy letter from Joseph Larmor to Professor J [John] A [Alexander] McClelland FRS | 2 May 1912 |
| NLB/45/719 | Copy letter from Joseph Larmor to Professor [William] Esson | 28 April 1912 |
| NLB/47/297 | Copy letter from Robert William Frederick Harrison to Sir Joseph [Larmor] | 11 January 1913 |
| NLB/46/716 | Copy letter from Joseph Larmor, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 12 October 1912 |
| MC/27/111 | Letter from [Louis Napoleon George] Filon, Vega, Blenheim Crescent, South Croydon, to Sir Joseph Larmor, [Royal Society] | 15 October1912 |
| MC/21/367 | Letter from [Joseph Larmor], to the Royal Society | [January 1906] |
| NLB/47/443 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, MP, FRS | 31 January 1913 |
| NLB/46/822 | Copy letter from Joseph Larmor, to The Secretary, H M Treasury | 7 November 1912 |
| NLB/47/693 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor | 17 March 1913 |
| NLB/48/244 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Fellow of the Royal Society | 3 June 1913 |
| NLB/47/28 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary of the Royal Society | 16 November 1912 |
| NLB/50/646 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Fellow of the Royal Society | 2 October 1914 |
| NLB/48/210 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Fellow of the Royal Society | 31 May 1913 |
| NLB/48/454 | Copy letter from Robert William Frederick Harrison, to Sir Joseph [Larmor], [Fellow of the Royal Society] | 7 July 1913 |
| MC/19/778 | Letter from [?], University College, London, to Gower Street, to [Joseph] Larmor | 10 June 1904 |
| NLB/50/58 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Fellow of the Royal Society [and Council Procedure Committee] | 23 April 1914 |
| NLB/53/348 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 18 July 1916 |
| NLB/52/365 | Copy letter from Arthur Schuster, Secretary of the Royal Society; to Professor Joseph Larmor, FRS | 11 November 1915 |
| NLB/60/520 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 17 February 1921 |
| NLB/52/335 | Copy letter from Arthur Schuster, Secretary of the Royal Society; to The Keeper of His Majesty's Privy Purse | 11 November 1915 |
| RR/40/8 | Referee's report by Joseph Larmor, on a paper 'On the secret law of thermodynamics' by E A Milne | June 1930 |
| RR/17/426 | Referee's report by Joseph Larmor, on a paper 'On pressure perpendicular to the shear planes in finite pure shears, and on the lengthening of loaded wires when twisted' by John Henry Poynting | May 1909 |
| MC/21/579 | Letter from Frederick Soddy, Chemical Laboratory, Glasgow University, to the President of the Royal Society, Burlington House | 7 November 1906 |
| RR/20/158 | Referee's report by Joseph Larmor, on a paper 'On the electric effect of rotating a magnetic insulator in a magnetic field' by Marjorie Wilson and H A Wilson | 31 May 1913 |
| RR/18/77 | Referee's report by Joseph Larmor, on a paper 'On the rotatory character of some terrestrial magnetic disturbances at Greenwich and on their diurnal distribution' by Robert B Sangster | April 1910 |
| NLB/54/77 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Sir Joseph Larmor, Chairman of the International Assocation of Academics Committee and FRS | 2 February 1917 |
| RR/19/80 | Referee's report by Joseph Larmor, on a paper 'Optical rotatory dispersion.–Part I. The natural and magnetic rotatory dispersion in quartz of light in the visible region of the spectrum' by Thomas Martin Lowry | [June 1912] |
| RR/19/83 | Referee's report by Joseph Larmor, on a paper 'The effect produced by an obstacle on a train of electric waves' by Hector Munro Macdonald | 6 August 1912 |
| MS/928/2/109 | Letter from Joseph Larmor, St John's College, Cambridge, to Charles Vernon Boys, 27 The Grove, Boltons, London | 30 September 1904 |
| RR/20/55 | Referee's report by Joseph Larmor, on a paper 'Radiation from a gas' by George Green | 8 December 1913 |
| NLB/53/329 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 13 June [?] 1916 |
| RR/17/394 | Referee's report by Joseph Larmor, on a paper 'The effect of pressure upon arc spectra. No. 3. -silver' by Geoffrey Duffield | 2 February 1909 |
| RR/17/258 | Referee's report by Joseph Larmor, on a paper 'The refractive index and dispersion of light in argon and helium' by W Burton | January 1908 |
| RR/21/80 | Second referee's report by Joseph Larmor, on a paper 'A method of deriving Planck's Law of Radiation' by George Green | 25 March 1914 |
| RR/21/118 | Referee's report by Joseph Larmor, on a paper 'On the origin of the absorption spectra of certain types of organic compounds' by N P McCleland | 28 February 1914 |
| RR/20/40 | Referee's report by Joseph Larmor, on a paper 'An experimental method for the production of vibrations on strings, illustrating the properties of loaded or unloaded telephone cables' by J A Fleming | October 1913 |
| RR/16/157 | Letter from Charles Chree, to Joseph Larmor, concerning referee reports on a paper 'An enquiry into the nature of the relationship between sunspot frequency and terrestrial magnetism' by Charles Chree | 30 March 1904 |
| RR/23/55 | Referee's report by Joseph Larmor, on a paper 'Seventh memoir on the partition of numbers. A detailed study of the enumeration of the partitions of multipartite numbers' by Major P A McMahon | 12 May 1916 |
| AP/79/2 | Unpublished paper, 'Note on the motional electromotive force in insulators' by S J Barnett | 1914 |
| RR/21/139 | Referee's report by Joseph Larmor, on a paper 'Electromagnetic waves in a perfectly conducting tube' by Ludwik Silberstein | [December 1914] |
| NLB/23/1 | Copy letters sent from Royal Society administrative staff and officers | 2 August 1901-12 February 1902 |
| NLB/43 | New Letter Book volume 43, copy letters sent from Royal Society administration | 20 October 1910-12 April 1911 |
| NLB/53/185 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 22 May 1916 |
| NLB/54/397 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 2 May 1917 |
| RR/25/18 | Referee's report by Joseph Larmor, on a paper 'The extension of gas laws to liquids' by John Scott Haldane | 23 May 1918 |
| RR/17/455 | Referee's report by Joseph Larmor, on a paper 'The statistical theory of black body radiation' by H A Wilson | 2 February 1909 |
| NLB/55/31 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 13 November 1917 |
| NLB/59/525 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 13 October 1920 |
| NLB/53/363 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 21 July 1916 |
| NLB/58/392 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 29 April 1920 |
| RR/13/220 | Referee's report by Joseph Larmor, on a paper 'Experiments on the absence of mechanical connexion between ether and matter' by Oliver Joseph Lodge | 28 January 1897 |
| RR/20/72 | Referee's report by Joseph Larmor, on a paper 'On the determination of the wave-length of the linear electrical oscillator' by James E Ives | November 1913 |
| NLB/57/11 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Mr JH [James Hopwood] Jeans, FRS, Chairman, Mathematics Committee | 1 July 1919 |
| RR/31/5 | Referee's report by Joseph Larmor, on a paper 'On the atomic fields of helium and neon' by J E Jones | 24 September 1924 |
| RR/18/10 | Referee's report by Joseph Larmor, on a paper 'The depression of freezing point in very dilute aqueous solutions' by T G Bedford | 12 March 1910 |
| RR/10/182 | Referee's report by Arthur Cayley, on a paper 'On the direct application of first principles in the theory of partial differential equations' by Joseph Larmor | 26 January 1888 |
| NLB/28 | New Letter Book volume 28, copy letters sent from Royal Society administration | 17 December 1903-13 June 1904 |
| RR/17/345 | Referee's report by Joseph Larmor, on a paper 'The constitution of the electric spark' by T Royds | 12 February 1908 |
| RR/17/242 | Referee's report by Joseph Larmor, on a paper 'Studies of the processes operative in solutions, parts VI to X' by Henry Edward Armstrong and others | 20 June 1908 |
| NLB/57/44 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 7 July 1919 |
| RR/17/301 | Referee's report by Joseph Larmor, on a paper 'A continuation of a research on the generation of a luminous glow in an exhausted receiver' by Jervis-Smith | 16 February 1908 |
| RR/13/113 | Referee's report by Joseph Larmor, on a paper 'Problems in electric convection' by George Frederick Charles Searle | 28 April 1896 |
| RR/12/162 | Referee's report by George Francis Fitzgerald, on a paper 'A dynamical theory of the electric and luminiferous medium' by Joseph Larmor | 19 April 1894 |
| RR/17/9 | Referee's report by Joseph Larmor, on a paper 'On the osmotic pressures of some concentrated aqueous solutions' by Randal Thomas Mowbray Rawdon Berkeley and E G J Hartley | 7 June 1906 |
| RR/12/344 | Referee's report by Richard Tetley Glazebrook, on a paper 'A dynamical theory of the electric and luminiferous medium.-Part II. Theory of electrons' by Joseph Larmor | 29 June 1895 |
| RR/12/280 | Referee's report by Joseph Larmor, on a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 24 January 1895 |
| RR/17/380 | Referee's report by Joseph Larmor on a paper 'Determination of the surface-tension of water by the method of jet vibration' by Niels Bohr | January 1909 |
| RR/20/90 | Referee's report by Joseph Larmor, on a paper 'Application of the electron theory to organic chemistry - Part I - Absorption Spectra' by W P McCleland and E Purvis | August 1913 |
| RR/19/70 | Referee's report by Joseph Larmor, on a paper 'On the emission velocities of photo-electrons' by A Ll Hughes | nd [1912] |
| RR/12/281 | Detailed referee's report by Joseph Larmor, on a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | [1895] |
| RR/13/65 | Referee's report by Joseph Larmor, on a paper 'Octonions' by Alex McAulay | 27 December 1895 |
| CD/13/7 | Copy letter from Ernest Henry Starling, to Joseph Larmor, Secretary of the Royal Society | 16 October 1906 |
| RR/15/380 | Referee's report by Joseph Larmor, on a paper 'The formation of definite figures by the deposition of dust' by William James Russell | 10 February 1903 |
| RR/13/69 | Letter from Joseph Larmor, on a paper 'Octonions' by Alex McAulay to the Secretary of the Royal Society | 3 March 1896 |
| RR/21/78 | Referee's report by Joseph Larmor, on a paper 'A method of deriving Planck's Law of Radiation' by George Green | 7 March 1914 |
| RR/18/68 | Referee's report by Joseph Larmor, on a paper 'The pressure of light against the source: the recoil from light' by John Henry Poynting | 15 January 1910 |
| RR/17/283 | Referee's report by Joseph Larmor, on a paper 'The spectrum of scandium and its relation to solar spectra' by Alfred Fowler | 17 July 1908 |
| NLB/59/914 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 30 November 1920 |
| RR/17/306 | Referee's report by Joseph Larmor, on a paper 'The emission and transmission of Rontgen rays' by George William Clarkson Kaye | 2 July 1908 |
| NLB/60/531 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 18 February 1921 |
| RR/18/80 | Referee's report by Joseph Larmor, on a paper 'The extinction of sound in a viscous atmosphere by small obstacles of cylindrical and spherical form' by C J T Sewell | 8 February 1910 |
| NLB/59/828 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 17 November 1920 |
| NLB/63/524 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Sir Joseph Larmor, FRS | 02 November 1922 |
| RR/17/12 | Referee's report by Joseph Larmor, on a paper 'Ionic size in relation to the physical properties of aqueous solutions' by William Robert Bousfield | [January 1906] |
| RR/15/371 | Referee's report by Joseph Larmor, on the Bakerian Lecture 'The law of the pressure of gases between 75 and 150 millimeters of mercury' by John William Strutt, Lord Rayleigh | 28 February 1902 |
| RR/22/41 | Referee's report by Joseph Larmor, on a paper 'On the relation between transpiration and stomatal aperture' by Francis Darwin | 15 August 1915 |
| RR/17/336 | Referee's report by Joseph Larmor, on a paper 'The osmotic pressure of compressible solutions of any degree of concentration, part II' by Alfred William Porter | 1 February 1908 |
| RR/27/104 | Referee's report by Arthur Stanley Eddington, on a paper 'On the nature and amount of the gravitational deflection of light' by Joseph Larmor | October 1922 |
| RR/16/256 | Referee's report by Joseph Larmor, on a paper 'Polarised röntgen radiation' by Dr Charles Glover Barkla | February 1905 |
| RR/23/7 | Referee's report by Joseph Larmor, on a paper 'The scattering of plane electric waves by spheres' by Thomas John I'Anson Bromwich | 25 May 1916 |
| NLB/30/584 | Copy letter from Joseph Larmor, to Leonard Bairstow, [Fellow of the Royal Society] and A D Alexander | April 1905 |
| RR/17/155 | Referee's report by Joseph Larmor, on a paper 'The effect of pressure upon arc spectra. No. 1. Iron' by W Geoffrey Duffield | 9 July 1907 |
| RR/17/349 | Referee's report by Joseph Larmor, on a paper 'The intimate structure of crystals part VI' by William Johnson Sollas | 11 January 1908 |
| NLB/60/543 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 21 February 1921 |
| RR/47/27 | Referee's report by Joseph Larmor, on a paper 'Radio transmission problems treated by phase integral methods' by Thomas Lydwell Eckersley | 26 January 1932 |
| NLB/57/39 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor MP, FRS | 8 July 1919 |
| RR/16/398 | Referee's report by Joseph Larmor, on a paper 'The refractive indices of sulphuric acid' by Victor Herbert Veley and J J Manley | May 1905 |
| NLB/57/290 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to JH [James Hopwood] Jeans Esq., FRS | 8 October 1919 |
| NLB/57/366 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to JH [Sir James Hopwood] Jeans, FRS | 27 October 1919 |
| MC/26/262 | Letter from [Clement Arkadevich] Timiriazeff, to Sir Joseph [Larmor], [Royal Society] | November 1911 |
| NLB/61/850 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 3 November 1921 |
| NLB/57/657 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to Sir Frank [Watson] Dyson, FRS, Astronomer Royal | 7 January 1920 |
| NLB/57/725 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to WJ Johnston, University College, Aberystwyth | 29 January 1920 |
| NLB/61/828 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to H. F. Baker Esquire; Walcott, Storey's Way, Cambridge | 1 November 1921 |
| NLB/62/335 | Copy letter from an unknown correspondent; to Sir Joseph Larmor, FRS | 27 January 1922 |
| NLB/61/847 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to the Deputy Master of the Mint | 3 November 1921 |
| NLB/61/898 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 10 November 1921 |
| NLB/62/24 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 17 November 1921 |
| NLB/62/491 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 22 February 1922 |
| NLB/55/686 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 18 July 1918 |
| NLB/63/761 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 11 December 1922 |
| RR/17/265 | Referee's report by Joseph Larmor, on a paper 'On scandium' by William Crookes | 30 April 1908 |
| NLB/57/658 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to Sir Joseph Larmor, FRS, MP | 7 January [1920] |
| CD/46/18 | Letter from George Howard Darwin, to Joseph Larmor, Secretary of the Royal Society | [November 1908] |
| RR/13/207 | Referee's report by Joseph John Thomson, on a paper 'A dynamical theory of the electric and luminiferous medium.— Part III. relations with material media' by Joseph Larmor | 9 June 1897 |
| NLB/57/32 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; Sir Lazarus Fletcher, FRS | 4 July 1919 |
| NLB/57/328 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Richard [Tetley] Glazebrook, FRS, Chairman of the Physics Committee | 17 October 1919 |
| NLB/63/730 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Sir Joseph Larmor, FRS | 07 December 1922 |
| NLB/63/713 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 05 December 1922 |
| IM/GA/Russell/002636 | Larmor, Sir Joseph | 1922 |
| MS/928/6/2/19 | Letter from Joseph Larmor, Holywood, County Down, to Charles Vernon Boys | 21 March 1935 |
| CD/73/18 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Joseph Larmor, Secretary of the Royal Society | 29 January 1912 |
| NLB/38/671 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 20 October 1908 |
| NLB/66/628 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to the Secretary, Cambridge Philosophical Society, Cambridge | 5 June 1924 |
| NLB/38/746 | Copy letter from Joseph Larmor, to Richard Tetley Glazebrook, Fellow of the Royal Society | 29 October 1908 |
| CD/73/7 | Letter from [John Louis Emil] Dreyer, to Sir Joseph Larmor, Secretary of the Royal Society | 16 June 1910 |
| CD/23/10 | Letter from William Napier Shaw, Secretary of the Meteorological Office, to Joseph Larmor, Secretary of the Royal Society | 19 May 1903 |
| NLB/66/719 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 25 June 1924 |
| CD/73/24 | Letter from Joseph Larmor, St John's College, Cambridge, to [Herbert Hall] Turner | 3 February 1912 |
| NLB/69/283 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to to Sir Ernest Rutherford, O.M. FRS | 22 February 1926 |
| NLB/44/848 | Copy letter from Joseph Larmor to [J A] Hardcastle | Undated |
| NLB/70/890 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 31 October 1927 |
| CD/25/9 | Letter from Herbert Hall Turner, to Joseph Larmor, Secretary of the Royal Society | 23 February 1902 |
| CD/47/13 | Letter from Troughton & Simms, Mathematical Instrument Works, 340 Woolwich Road, Charlton, to Dr Joseph Larmor, Secretary of the Royal Society | 18 May 1903 |
| CD/25/15 | Memorandum by Joseph Larmor, to [Robert Harrison, Assistant Secretary, the Royal Society] | 21 April 1902 |
| CD/25/11 | Letter from Herbert Hall Turner, to Joseph Larmor, Secretary of the Royal Society | 1 March 1902 |
| CD/73/14 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Joseph Larmor, Secretary of the Royal Society | 22 January 1912 |
| CD/34/8 | Letter from Richard Tetley Glazebrook, to Joseph Larmor, Secretary of the Royal Society | 16 May 1908 |
| CD/22/10 | Letter from the William Napier Shaw, Secretary of the Meteorological Office, to Joseph Larmor, Secretary of the Royal Society | 25 January 1905 |
| CD/12/1 | Letter from Charles Vernon Boys, to [Joseph] Larmor | 17 May 1911 |
| CD/23/18 | Letter from Richard Tetley Glazebrook, Director of the National Physical Laboratory, to Professor Joseph Larmor, St. John's College, Cambridge | 25 May 1909 |
| NLB/42/603 | Copy letter from Joseph Larmor to The Secretary, HM Treasury | Undated |
| CD/26/9 | Letter from [Edward Albert Sharpey] Schafer, to Joseph Larmor, Secretary of the Royal Society | 8 November 1903 |
| NLB/40/363 | Copy letter from Joseph Larmor to [Hugh Longbourne] Callendar | Undated |
| CD/25/10 | Letter from Karl Pearson, University College, to Joseph Larmor, Secretary of the Royal Society | 25 February 1902 |
| CD/60/2 | Letter from [George Howard] Darwin, Newnham Grange, Cambridge, to Joseph Larmor, Secretary of the Royal Society | 22 June 1905 |
| CD/73/19 | Letter from Joseph Larmor, Secretary of the Royal Society, St John's College, Cambridge, to unknown correspondent | 30 January 1912 |
| CD/25/13 | Letter from Herbert Hall Turner, to Joseph Larmor, Secretary of the Royal Society | 19 March 1902 |
| CD/26/11 | Letter from Joseph Larmor, Secretary of the Royal Society, to Robert Harrison, Assistant Secretary of the Royal Society | 9 November 1903 |
| CD/34/1 | Letter from Richard Tetley Glazebrook, to Joseph Larmor, Secretary of the Royal Society | 27 June [1907] |
| CD/46/19 | Letter from Sir David Gill, to Joseph Larmor, Secretary of the Royal Society | 29 November 1908 |
| NLB/42/65 | Copy letter from Robert William Frederick Harrison to The Senatore, Professor P Blaserna, President of the R Accademis dei Lincei | Undated |
| CD/25/5 | Letter from Karl Pearson, 7 Well Road, Hampstead, to Joseph Larmor, Secretary of the Royal Society | 18 February 1902 |
| CD/25/6 | Letter from Karl Pearson, University College, to Joseph Larmor, Secretary of the Royal Society | 20 February 1902 |
| CD/48/22 | Letter from [Herbert Hall] Turner, to Joseph Larmor, Secretary of the Royal Society | 22 March 1903 |
| CD/33/20 | Letter from Arthur Schuster, to Joseph Larmor, Secretary of the Royal Society | 6 July 1910 |
| CD/47/12 | Letter from Sir George Darwin, to Joseph Larmor, Secretary of the Royal Society | 18 May 1903 |
| CD/73/30 | Postcard from [John Louis Emil Dreyer], to Sir Joseph Larmor, Secretary of the Royal Society, St John's College, Cambridge | 9 February 1912 |
| CD/47/15 | Letter from J.F. Jones, Joint Manager and Secretary of the British South Africa Company, to Joseph Larmor, Secretary of the Royal Society | 21 May 1903 |
| CD/46/15 | Letter from Sir David Gill, to Joseph Larmor, Secretary of the Royal Society | 20 February 1908 |
| CD/49/7 | Letter from [Herbert Hall] Turner, to Joseph Larmor, Secretary of the Royal Society | 15 February 1904 |
| CD/73/1 | Letter from S. A. Saunders, Secretary of the Royal Astronomical Society, to Sir Joseph Larmor, Secretary of the Royal Society | 15 January 1910 |
| CD/73/22 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Joseph Larmor, Secretary of the Royal Society | 2 February 1912 |
| CD/73/4 | Letter from [Samuel Arthur] Saunder, Secretary of the Royal Astronomical Society, to Sir Joseph Larmor, Secretary of the Royal Society | 13 June 1910 |
| CD/73/6 | Letter from J. A. Hardcastle, The Dial House, Crowthorne, Berkshire, to Sir Joseph Larmor, Secretary of the Royal Society | 16 June 1910 |
| CD/15/2 | Letter from Sir William Huggins, to Professor Joseph Larmor, Secretary of the Royal Society | 11 October 1908 |
| CD/73/3 | Letter from [John Louis Emil] Dreyer, The Observatory, Armagh, to Sir Joseph Larmor, Secretary of the Royal Society | 1 June 1910 |
| CD/73/15 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Joseph Larmor, Secretary of the Royal Society | 26 June 1912 |
| CD/73/5 | Letter from [Samuel Arthur] Saunder, Secretary of the Royal Astronomical Society, to Sir Joseph Larmor, Secretary of the Royal Society | 14 June 1910 |
| CD/23/16 | Letter from William Napier Shaw, Secretary of the Meteorological Office, to Joseph Larmor, Secretary of the Royal Society | 15 October 1902 |
| CD/13/1 | Letter from J. Smith Whitaker, Medical Secretary of the British Medical Association, to Professor Joseph Larmor and Sir Archibald Geikie, Secretaries of the Royal Society, Burlington House, Piccadilly | 4 April 1906 |
| CD/46/1 | Letter from David Gill, Chairman of the Geodetic Arc Committee, to Joseph Larmor, Secretary of the Royal Society | 3 May 1904 |
| MC/20/246 | Letter from [Andrew] Noble, Elswick Works, Newcastle upon Tyne, to Professor [Joseph] Larmor | 20 June 1905 |
| NLB/51/447 | Copy lettter from Robert Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, MP, FRS | 22 March 1915 |
| EC/1892/18 | Larmor, Sir Joseph: certificate of election to the Royal Society | |
| RR/16/337 | Memoranda from Robert William Frederick Harrison, and reply from Joseph Larmor, on a paper 'An account of the pendulum observations made at Kew and Greenwich Observatories in 1903' by Gerald Ponsonby Lenox-Conynham | 28 July 1905 |
| NLB/26/609 | Copy letter from Joseph Larmor to, The Director-General of Stores, India Office, Whitehall, S.W. | 28 April 1903 |
| MC/20/430 | Letter from [William Augustus] Tilden, Board of Education, Royal College of Science, London, South Kensington, to [Joseph] Larmor | 13 May 1905 |
| IM/Maull/002635 | Larmor, Sir Joseph | nd |
| CD/22/5 | Letter from Joseph Larmor and Archibald Geikie, Secretaries of the Royal Society, to the Secretary of His Majesty's Treasury | 8 November 1904 |
| IM/002634 | Larmor, Sir Joseph | nd |
| NLB/23/1/795 | Copy letter from Joseph Larmor, to the Director General of Stores, India Office, Whitehall | 23 January 1902 |
| NLB/34/122 | Copy letter from Joseph Larmor, to Professor [Harold Albert] Wilson, [Fellow of the Royal Society] | 1 December 1906 |
| NLB/40/717 | Copy letter from Joseph Larmor to [Henry Edward] Armstrong | 23 July 1909 |
| MC/23/113 | Letter from Ettrick William Creak, 9 Hervey Road, Blackheath, London, to [Joseph] Larmor, | 22 October 1908 |
| NLB/36/221 | Copy letter from Joseph Larmor, to Dr James Thomson Bottomley, [Fellow of the Royal Society] | 23 September 1907 |
| MC/23/389 | Letter from Augusto Righi, Instituto di Fisica della Universita di Bologna, to Professor [Joseph] Larmor | 11 October 1908 |
| NLB/42/14 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS | 7 March 1909 |
| NLB/41 | New Letter Book volume 41, copy letters sent from Royal Society administration | 15 September 1909-4 March 1910 |
| NLB/33 | New Letter Book volume 33, copy letters sent from Royal Society administration | 13 June 1906-15 November 1906 |
| NLB/27 | New Letter Book volume 27, copy letters sent from Royal Society administration | 15 June 1903- 17 December 1903 |
| NLB/42 | New Letter Book volume 42, copy letters sent from Royal Society administration | 4 March 1910-19 October 1910 |
| NLB/46 | New Letter Book volume 46, copy letters sent from Royal Society administration | 21 May 1912-12 November 1912 |
| RR/15/385 | Second letter from Henry Sessions Souttar, on his paper, 'The properties and theory of the capillary electrometer, with reference to Professor Hermann's observations on the same subject' to Joseph Larmor | 12 April 1902 |
| NLB/45 | New Letter Book volume 45, copy letters sent from Royal Society administration | 5 December 1911-21 May 1912 |
| RR/15/383 | Letter from Arthur Schuster, on his paper 'Some definite integrals and a new method of reducing a function of spherical coordinates to a series of spherical harmonics' to Joseph Larmor | 4 August 1902 |
| RR/15/306 | Letter from Jagadis Chunder Bose, on his paper 'Electro-molecular wave' to Joseph Larmor | 12 April 1902 |
| RR/15/401 | Letter from Harold Baily Dixon, on a paper 'Chemical dynamics and statics in light' by Meyer Wilderman to Joseph Larmor | 17 March 1902 |
| RR/15/395 | Referee's report by Joseph Larmor, on a paper 'The measurements of temperature. Parts I-III' by Morris William Travers, George Senter and Adrien Jaquerod | 6 July 1902 |
| RR/16/314 | Referee's report by Joseph Larmor, on a paper 'Colours in metal glasses, and in metallic films & metallic solutions. II.' by J C Maxwell Garnett | 14 June 1905 |
| RR/16/273 | Referee's report by Jospeh Larmor, on a paper 'Ionic sizes in relation to the conductivity of electrolytes' by W R Bonsfield | 25 March 1905 |
| RR/16/225 | Referee's report by Joseph Larmor, on the Bakerian Lecture 'The succession of changes in radio-active bodies' by Ernest Rutherford | 25 August 1904 |
| RR/16/217 | Memoranda from Robert William Frederick Harrison, and reply from Hugh Longbourne Callendar and Joseph Larmor, on a paper 'On the seismic effect of tidal stresses' by Richard Dixon Oldham | 10 May 1904 |
| NLB/19/178 | Copy letter from Arthur William Rucker, to Sir Jospeh Larmor, Fellow of the Royal Society | 7 July 1899 |
| NLB/23/2/213 | Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society | 20 June 1902 |
| NLB/23/2/238 | Copy letter from Sir Michael Foster and Joseph Larmor, to Dr Ludwig Mond, Fellow of the Royal Society | 14 July 1902 |
| NLB/23/2/338 | Copy letter sent from Joseph Larmor, to The Secretary of the Admiralty | 26 May 1903 |
| NLB/23/2/417 | Copy letter sent from Joseph Larmor and Archibald Geikie, to The Honorable Secretaries, The Royal Geographical Society | 15 December 1903 |
| NLB/23/2/496 | Copy letter from Joseph Larmor, to Professor Herbert Hall Turner, Fellow of the Royal Society | 17 June 1904 |
| NLB/23/2/420 | Copy letter sent from Joseph Larmor, to The Honorable Secretaries, The Royal Geographical Society | 16 November 1903 |
| NLB/23/2/464 | Letter from Joseph Larmor and Archibald Geikie, to The Right Honorable The First Lord of H M Treasury | 28 April 1904 |
| NLB/23/1/631 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 18 December 1901 |
| NLB/23/2/538 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society | 28 October 1904 |
| NLB/23/1/691 | Copy letter from Joseph Larmor, to Hugh Ramage | 23 December 1901 |
| NLB/31/191 | Copy letter from Joseph Larmor and Archibald Geikie, to the Under Secretary of State for India, India Office | 7 July 1905 |
| NLB/25/38 | Copy letter from Joseph Larmor to F W Holderness | 29 July 1902 |
| NLB/25/227 | Copy letter from Joseph Larmor, to the Under Secretary of State | 26 September 1902 |
| NLB/24/475 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 23 May 1902 |
| NLB/25/446 | Copy letter from Michael Foster and Joseph Larmor, to the Under Secretary of State, India Office | 5 November 1902 |
| NLB/25/521 | Copy letter from Joseph Larmor, to the Under Secretary of State, India Office | 12 November 1902 |
| NLB/27/75 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society, Helen's Bay, Belfast | 25 June 1903 |
| NLB/27/171 | Copy letter from Joseph Larmor, to the Under Secretary of State for India, India Office, S.W. | 14 July 1903 |
| NLB/27/515 | Copy letter from Joseph Larmor, to the Secretary, British South Africa Company | 9 October 1903 |
| NLB/27/725 | Copy letter from Joseph Larmor, to Mr T C Porter | 20 November 1903 |
| NLB/27/810 | Copy letter from Joseph Larmor, to Professor William Fletcher Barrett, Fellow of the Royal Society | 3 December 1903 |
| NLB/27/865 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 14 December 1903 |
| NLB/28/143 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 18 January 1904 |
| NLB/27/837 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Fellow of the Royal Society | 8 December 1903 |
| NLB/28/200 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 January 1904 |
| NLB/31/885 | Copy letter from Joseph Larmor and Archibald Geikie, to the Permanent Administrative Secretary, His Majesty's Treasury | 30 November 1905 |
| NLB/29/409 | Copy letter from Joseph Larmor and Archibald Geikie, to Captain Thomas Henry Tizard, Fellow of the Royal Society, Charles Thomas Rees Wilson, William Henry Dines, Fellow of the Royal Society, H N Dickson, A J Herbertson, Dr Charles Chree, Fellow of the Royal Society, Professor Joseph Larmor, Secretary of the Royal Society, Dr William Napier Shaw, Fellow of the Royal Society, Dr H R Mill | 10 October 1904 |
| NLB/30/795 | Copy letter from Joseph Larmor and Archibald Geikie to the Under Secretary of State, Foreign Office | 25 May 1905 |
| NLB/30/818 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, [Secretary, Royal Society] | 29 May 1905 |
| NLB/30/775 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 22 May 1905 |
| NLB/30/882 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 6 June 1905 |
| NLB/31/118 | Copy letter from Joseph Larmor, to Sir [Joseph] Norman [Lockyer], [Fellow of the Royal Society] | 24 June 1905 |
| NLB/31/226 | Copy letter from Joseph Larmor, to Wyndham Rowland Dunstan, [Fellow of the Royal Society] | 11 July 1905 |
| NLB/31/266 | Copy letter from Joseph Larmor, to the Under Secretary of State for Foreign Affairs | 18 July 1905 |
| NLB/29/522 | Copy letter from Joseph Larmor, to Dr Mitchell | 30 October 1904 |
| NLB/29/494 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Secretary of the Royal Society | 25 October 1904 |
| NLB/32/2 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 11 December 1905 |
| NLB/31/292 | Copy letter from Joseph Larmor, to Major [Edmond Herbert Grove-]Hills, [Fellow of the Royal Society] | 24 July 1905 |
| NLB/31/535 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 7 October 1905 |
| MC/21/368 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 4 January 1906 |
| NLB/31/751 | Copy letter from Joseph Larmor and Archibald Geikie, to Count Johann Heinrich von Bernstorff | 8 November 1905 |
| NLB/31/777 | Copy letter from Joseph Larmor, to Dr Wildermann | 12 November 1905 |
| NLB/31/884 | Copy letter from Joseph Larmor, to Professor J Beattie | 30 November 1905 |
| NLB/33/75 | Copy letter from Joseph Larmor, to William Edward Wilson, Fellow of the Royal Society | 26 June 1906 |
| NLB/33/96 | Copy letter from Joseph Larmor, to the Editor, 'The Spectator' | 28 June 1906 |
| NLB/33/98 | Copy letter from Joseph Larmor, to the Editor, 'Nature' | 28 June 1906 |
| NLB/33/91 | Copy letter from Joseph Larmor, to the Editor, 'Popular Science Monthly' | 28 June 1906 |
| NLB/29/806 | Copy letter from Joseph Larmor, to The Secretary, H M Treasury | 13 December 1904 |
| NLB/29/811 | Copy letter from Joseph Larmor, to Dr Peter Chalmers Mitchell, [Fellow of the Royal Society] | 13 December 1904 |
| NLB/33/398 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 23 August 1906 |
| NLB/33/487 | Copy letter from T R S[?], to Professor Joseph Larmor, Secretary, Royal Society | 11 September 1906 |
| NLB/33/715 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, Royal Commission on Vivisection | 26 October 1906 |
| NLB/36 | New Letter Book volume 36, copy letters sent from Royal Society administration | 22 July 1907-9 January 1908 |
| NLB/36/192 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 6 September 1907 |
| NLB/36/124 | Copy letter from Joseph Larmor, to Dr James Thomson Bottomley, [Fellow of the Royal Society] | 19 August 1907 |
| NLB/34/338 | Copy letter from Joseph Larmor, to Professor von Drygalski, Deutsche Sudpolar-Expedition, Schiffbauerdamm 27, Berlin, N.W. 6 | 4 January 1907 |
| NLB/34/536 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Lamor, Secretary of the Royal Society | 5 February 1907 |
| NLB/34/617 | Copy letter from Joseph Larmor, to Arthur William Rucker, Fellow of the Royal Society | 14 February 1907 |
| NLB/37/103 | Copy letter from Robert William Frederick Harrison to Professor Larmor, Secretary of the Royal Society | 27 January 1908 |
| NLB/37/700 | Copy letter from Robert William Frederick Harrison to C [Charles] V [Vernon] Boys, Fellow of the Royal Society | 4 May 1908 |
| NLB/37/698 | Copy letter from Robert William Frederick Harrison to Sir Arthur Rucker, Fellow of the Royal Society | 2 May 1908 |
| NLB/38/403 | Copy letter from Joseph Larmor, to The Under Secretary of State, India Office, Whitehall, S.W. | 29 July 1908 |
| NLB/38/667 | Copy letter from Joseph Larmor, to Admiral Field | 20 October 1908 |
| NLB/40/693 | Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Secretary RS | 19 July 1909 |
| NLB/43/425 | Copy letter from Joseph Larmor, to Admiral H E Purey-Cust | 10 January 1911 |
| NLB/46/167 | Copy letter from Joseph Larmor, to The Under Secretary of State for Foreign Affairs | 19 June 1912 |
| NLB/46/787 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Larmor, Secretary of the Royal Society | 4 November 1912 |
| NLB/52/329 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to The Deputy Master of the [Royal] Mint | 11 November 1915 |
| RR/21/22 | Referee's report by Joseph Larmor, on a paper 'Note on the motional electromotive force of insulators' by S J Barnett | [February 1914] |
| RR/24/86 | Referee's report by Joseph Larmor, on a paper 'The effective inertia of electrified systems moving with high speed' by George Walker Walker | 5 April 1917 |
| NLB/53/120 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 31 March 1916 |
| RR/10/183 | Second referee's report by Arthur Cayley, on a paper 'On the direct application of first principles in the theory of partial differential equations' by Joseph Larmor | 1 March 1888 |
| RR/47/28 | Referee's report by Joseph Larmor, on a paper 'Long wave transmission, treated by phase integral methods' by Thomas Lydwell Eckersley | 4 February 1932 |
| RR/12/343 | Referee's report by Horace Lamb, on a paper 'A dynamical theory of the electric and luminiferous medium.-Part II. Theory of electrons' by Joseph Larmor | 13 June 1895 |
| NLB/59/248 | Copy letter from Professor Horace Lamb, FRS; to Sir Joseph Larmor, FRS | 30 July 1920 |
| NLB/59/308 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir [Joseph] Larmor, FRS | 9 September 1920 |
| NLB/60/494 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 15 February 1921 |
| NLB/57/354 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to JH [Sir James Hopwood] Jeans Esq,FRS | 23 October 1919 |
| NLB/62/132 | Copy letter from David Prain, Treasurer and Vice President of the Royal Society; to Sir Joseph Larmor, FRS | 8 December 1921 |
| CD/23/4 | Letter from William Napier Shaw, Secretary of the Meteorological Office, to Joseph Larmor, Secretary of the Royal Society | 14 October 1902 |
| CD/25/2 | Letter from Karl Pearson, 7 Well Road, Hampstead, to Joseph Larmor, Secretary of the Royal Society | 9 February 1902 |
| CD/60/4 | Letter from J. W. Holderness, to Joseph Larmor, Secretary of the Royal Society | 24 January 1905 |
| NLB/65/604 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Lord Rayleigh [Robert John Strutt], FRS | 27 November 1923 |
| MC/19/38 | Letter from Robert [Stawell] Ball, Observatory, Cambridge, to [Joseph] Larmor | 18 October 1904 |
| RR/15/369 | Referee's report by William Thomas Blanford, on a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl Pearson | 13 February 1902 |
| NLB/23/2/495 | Copy letter from Joseph Larmor, to Professor Herbert Hall Turner, [Fellow of the Royal Society] | 17 June 1904 |
| NLB/25/462 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, [Fellow of the Royal Society] | 7 November 1902 |
| NLB/27/315 | Copy letter from A H White, to Professor Joseph Larmor, Secretary, Royal Society | 6 August 1903 |
| NLB/28/69 | Copy letter from Robert William Frederick Harrison, to Richard Tetley Glazebrook, Fellow of the Royal Society | 5 January 1904 |
| NLB/28/70 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 5 January 1904 |
| NLB/28/124 | Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Hough Love, Fellow of the Royal Society | 13 January 1904 |
| NLB/30/41 | Copy letter from Joseph Larmor, to Dr Charles Chree, [Fellow of the Royal Society] | 20 January 1905 |
| NLB/28/180 | Copy letter from Joseph Larmor, to Augustus George Vernon Harcourt, Fellow of the Royal Society | 26 January 1904 |
| NLB/30/37 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, His Majesty's Treasury | 19 January 1905 |
| NLB/30/305 | Copy letter from Archibald Geikie and Joseph Larmor, to the Under Secretary of State, Foreign Office | 1 March 1905 |
| NLB/30/281 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, His Majesty's Treasury | 23 February 1905 |
| NLB/30/598 | Copy letter from Joseph Larmor and Archibald Geikie, to the Secretary, His Majesty's Treasury | 14 April 1905 |
| NLB/30/751 | Copy letter from Joseph Larmor, to the Under Secretary of State for India | 16 May 1905 |
| NLB/28/570 | Copy letter from Joseph Larmor, to Sir John Eliott | 7 April 1904 |
| NLB/28/837 | Copy letter from Robert William Frederick Harrison, to Dr Joseph Larmor, Fellow of the Royal Society | 3 June 1904 |
| NLB/31/318 | Copy letter from [Joseph Lamor], to the Under Secretary, Colonial Office, Whitehall, S.W. | 2 August 1905 |
| NLB/32/111 | Copy letter from Joseph Larmor, to Dr Edward Divers, Fellow of the Royal Society | 2 January 1906 |
| NLB/31/102 | Copy letter from Joseph Larmor and Archibald Geikie, to the Under Secretary of State, Foreign Office | 21 June 1905 |
| NLB/32/508 | Copy letter from Joseph Larmor, to Karl Pearson, [Fellow of the Royal Society] | 22 March 1906 |
| NLB/33/272 | Copy letter from Joseph Larmor, to the Secretary to His Majesty's Treasury | 26 July 1906 |
| NLB/33/745 | Copy letter from [Joseph Larmor] to the Secretary, His Majesty's Treasury | 29 October 1906 |
| NLB/36/74 | Copy letter from Joseph Larmor, to the Under Secretary of State, India Office | 3 August 1907 |
| NLB/34/636 | Copy letter from Richard T Wright, University Press Cambridge, to Professor Joseph Larmor, Secretary of the Royal Society, Burlington House, London, W. | 16 February 1907 |
| NLB/34/696 | Copy letter from Joseph Larmor, to St John's College, Cambridge | 28 February 1907 |
| NLB/39/176 | Copy letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society | 7 December 1908 |
| NLB/38/430 | Copy letter from Joseph Larmor, to Mr Balfour | 1 August 1908 |
| NLB/40/308 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] Rutherford FRS | 24 May 1909 |
| NLB/38/832 | Copy letter from Joseph Larmor and Archibald Geikie to, The Rev Vice Chancellor of the University of Cambridge | 12 November 1908 |
| NLB/41/628 | Copy letter from Joseph Larmor, to The Under Secretary of State, India Office, S.W. | 25 January 1910 |
| RR/17/53 | Referee's report by Joseph Larmor, on a paper 'On the discharge of negative electricity from hot calcium and from lime' by Frank Horton | 22 December 1906 |
| RR/19/138 | Letter from William Bate Hardy, to Joseph Larmor, regarding a paper 'The chemical action of Bacillus cloacae (Jordan) on citric and malic acids in the presence and absence of oxygen' by James Thompson | 2 February 1912 |
| RR/12/160 | Referee's report by Joseph John Thomson, on a paper 'A dynamical theory of the electric and luminiferous medium' by Joseph Larmor | 5 February 1894 |
| NLB/55/577 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to William Foster Esq., C.I.E., Registar & Superintendent of Records, India Office | 17 June 1918 |
| NLB/66/548 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Sydney] Chapman | 29 May 1924 |
| NLB/31 | New Letter Book volume 31, copy letters sent from Royal Society administration | 13 June 1905-8 December 1905 |
| CD/25/7 | Letter from Herbert Hall Turner, to Joseph Larmor, Secretary of the Royal Society | 20 February 1902 |
| MC/20/432 | Letter from [William Augustus] Tilden, Board of Education, Royal College of Science, London, South Kensington, to [Joseph] Larmor | 22 May 1905 |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| NLB/30 | New Letter Book volume 30, copy letters sent from Royal Society administration | 14 January 1905-6 June 1905 |
| MC/18/138 | Note from [Joseph Larmor] | [January 1903] |
| RR/10/184 | Second referee's report by Andrew Russell Forsyth, on a paper 'On the direct application of first principles in the theory of partial differential equations' by Joseph Larmor | 1 March 1888 |
| RR/12/288 | Letter from Joseph Larmor, to William Thomson, 1st Baron Kelvin, regarding a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 20 July 1895 |
| RR/12/289 | Second letter from Joseph Larmor, to William Thomson, 1st Baron Kelvin, regarding a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 17 September 1895 |
| RR/17/456 | Referee's report by Joseph Larmor, on a paper 'The relative motion of the Earth and the ether' by H A Wilson | 15 December 1909 |
| AP/65/5 | Unpublished paper, 'On the direct application of first principles in the theory of partial differential equations' by J [Joseph] Larmor | 1887 |
| RR/17/74 | Referee's report by Joseph Larmor, on a paper 'Researches on explosives.—Part IV' by Andrew Nobel | 19 July 1906 |
| RR/12/161 | Letter from George Francis Fitzgerald, to John William Strutt, Lord Rayleigh, regarding a paper 'A dynamical theory of the electric and luminiferous medium' by Joseph Larmor | 9 February 1894 |
| RR/15/23 | Referee's report by Joseph Larmor, on a paper 'The kinetic theory of planetary atmospheres. Part I' by George Hartley Bryan | 20 May 1900 |
| RR/15/304 | Letter from George James Burch, on a paper 'Electro-molecular wave' by Jagadis Chunder Bose to Joseph Larmor | April 1902 |
| AP/79/10 | Unpublished paper, 'On the main crests of ship-waves, and on waves in deep water due to the motion of submerged bodies' by George Green | 1916 |
| MS/421/4 | Register of Papers submitted to the Royal Society, 1905-1920 | 1905-1920 |
| MC/21/485 | Letter from Karl Pearson, 7 Well Road, Hampstead, to [Joseph] Larmor | 12 May 1906 |
| NLB/27/457 | Copy letter from Joseph Larmor, to Messrs Troughton & Simms | 1 October 1903 |
| MS/421/3 | Register of Papers submitted to the Royal Society, 1885-1905 | 1885-1905 |
| NLB/38/103 | Copy letter from Dr Joseph Larmor, to The Under Secretary of State, India Office | 15 June 1908 |
| PP/17/39 | Paper, 'On the theory of electrodynamics' by Joseph Larmor | 1891 |
| PP/20/5 | Paper, 'On the theory of electrodynamics, as affected by the nature of the mechanical stresses in excited dielectrics' by Joseph Larmor | 1892 |
| RR/15/384 | Letter from Henry Sessions Souttar, on his paper, 'The properties and theory of the capillary electrometer, with reference to Professor Hermann's observations on the same subject' to Joseph Larmor | 8 April 1902 |
| RR/10/181 | Referee's report by Andrew Russell Forsyth, on a paper 'On the direct application of first principles in the theory of partial differential equations' by Joseph Larmor | 5 January 1888 |
| RR/13/227 | Letter from George Howard Darwin, on behalf of the Committee, on a paper 'A Maya calendar inscription, interpreted by Goodman's tables' by Alfred Percival Maudslay to the Secretary of the Royal Society | June 1897 |
| RR/15/245 | Letter from Arthur Schuster, on a paper 'A comparative study of the spectra, densities and melting points of some groups of elements and of the relation of properties to atomic mass' by Hugh Ramage to Joseph Larmor | 20 December 1901 |
| RR/15/273 | Referee's report by Joseph Larmor, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | 8 February 1901 |
| RR/15/402 | Letter from Meyer Wilderman, on his paper 'Chemical dynamics and statics in light' to Joseph Larmor | 5 April 1902 |
| RR/16/193 | Referee's report by Joseph Larmor, on a paper 'The dual force of the dividing cell. Part I. The Achromatic Spindle Figure, elucidated by magnetic chains of force' by Marcus Hartog | 4 February 1905 |
| RR/21/120 | Referee's report by Joseph Larmor, on a paper 'The transmission of electric waves around the earth's surface' by Hector Munro Macdonald | [January 1914] |
| RR/23/76 | Referee's report by Joseph Larmor, on a paper 'Numerical results of the theory of the diffraction of a plane electromagnetic wave by a perfectly conducting sphere' by Joseph Proudman, Arthur Thomas Doodson and G Kennedy | 25 May 1916 |
| RR/26/74 | Referee's report by William Henry Bragg, on a paper 'On electro-crystalline properties as conditioned by atomic lattices' by Joseph Larmor | [February 1921] |
| RR/26/75 | Referee's report by William Lawrence Bragg, on a paper 'On electro-crystalline properties as conditioned by atomic lattices' by Joseph Larmor | [February 1921] |
| RR/27/105 | Referee's report by Arthur Stanley Eddington, on a paper 'On the nature and amount of the gravitational deflection of light' by Joseph Larmor | 11 November 1922 |
| MC/19/556 | Memo from [Joseph] Larmor | [November 1904] |
| MC/19/540 | Memoranda from [Robert William Frederick] Harrison, to Professor [Joseph] Larmor, Secretary of the Royal Society | 26 January 1904 |
| MC/20/360 | Letter from Felix Semon, 39 Wimpole Street, Cavendish Square, London, to Dr [Joseph] Larmor, Secretary of the Royal Society | 17 January 1905 |
| MC/20/357 | Letter from [George Frederick Charles] Searle, Wyncote, Hills Road, Cambridge, to [Joseph] Larmor | 16 May 1905 |
| MC/18/39 | Letter from [James Alfred Ewing], Admiralty, to [Joseph] Larmor | 9 June 1903 |
| MC/18/140 | Letter from [Joseph] Larmor, The Royal Society, Burlington House, London, to [Robert William Frederick Harrison] | 18 February 1903 |
| MC/18/153 | Letter from [Joseph] Larmor, The Royal Society, Burlington House, London, to [Robert William Frederick] Harrison | 31 December 1903 |
| MC/18/141 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 2 March 1903 |
| MC/18/120 | Letter from [William Huggins], 90 Upper Tulse Hills, to [Robert William Frederick] Harrison | 24 December 1903 |
| MC/18/143 | Telegraph from [Joseph] Larmor, to the Royal Society, London | [March 1903] |
| MC/18/142 | Telegraph from [Joseph] Larmor, to the Royal Society, London | [March 1903] |
| MC/18/145 | Letter from [Joseph] Larmor, Secetary of the Royal Society, to Mr [Wilfred Hudelston] Hudleston | 7 March 1903 |
| MC/18/154 | Note from [Joseph Larmor] | [1903] |
| MC/18/135 | Letter from [Joseph] Larmor, to [Robert William Frederick] Harrison | 2 January 1903 |
| MC/18/148 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick Harrison] | 5 April 1903 |
| MC/18/144 | Letter from Assistant Secretary of the Royal Society, to Dr [Joseph] Larmor | 6 March 1903 |
| MC/18/137 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 17 January 1903 |
| MC/18/139 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 1 February 1903 |
| MC/18/152 | Note from [Joseph] Larmor | [June 1903] |
| MC/18/151 | Letter from [Joseph] Larmor, The Royal Society, Burlington House, London, to the Royal Society | [May 1903] |
| MC/18/149 | Memoranda to Professor [Joseph] Larmor, Secretary of the Royal Society | 1 May 1903 |
| MC/19/19 | Letter from Albert Armitage, Shepherd's Bush, to [Joseph] Larmor and [Archibald] Geikie, Secretarie sof the Royal Society | 11 November 1904 |
| MC/19/20 | Letter from [Henry Edward] Armstrong, 55 Granville Park, Lewisham, London to [Joseph] Larmor | 1 June 1904 |
| MC/19/93 | Letter from Ernest [William] Brown, Haverford College, Haverford, to Professor [Joseph] Larmor, Secretary of the Royal Society | 6 April 1904 |
| NLB/28/253 | Copy letter from Joseph Larmor and Archibald Geikie, to the President of the British Medical Association | 4 February 1904 |
| MC/19/151 | Letter from [William] Burnside, The Croft, Bromley Road, Catford, to [Joseph] Larmor | 10 January 1904 |
| MC/19/147 | Letter from [John Young] Buchanan, 26 Norfolk Street, Park Lane, to Professor [Joseph] Larmor | 16 February 1904 |
| MC/19/132 | Letter from David Bruce, 3P Artillery Mansions, Victoria Street, to [Joseph] Larmor | 4 November 1904 |
| MC/19/150 | Letter from George [James] Burch, Norham Hall, Oxford, to Dr [Joseph] Larmor | 26 November 1904 |
| MC/19/144 | Letter from Alexander Buchan, Scottish Meteorological Society, 122 George Street, Edinburgh, to Dr [Joseph] Larmor | 11 April 1904 |
| MC/19/152 | Letter from [William] Burnside, The Croft, Bromley Road, Catford, to [Joseph] Larmor | 5 May 1904 |
| MC/19/207 | Letter from [Robert Bellamy] Clifton, 3 Bardwell Road, Banbury Road, Oxford, to Professor [Joseph] Larmor | 12 December 1904 |
| MC/19/162 | Letter from [Hugh Lonbourne] Callendar, Board of Education, South Kensington, London, to [Joseph] Larmor | 14 November 1904 |
| MC/19/172 | Letter from Alfred W Campbell, County Asylum, Rainhill near Liverpool, to [Joseph] Larmor, Secretary of the Royal Society | 20 July 1904 |
| MC/19/253 | Letter from John Eliot, 54 Prince of Wales's Mansions, Prince of Wales's Row, Battersea, to Dr [Joseph] Larmor | [March 1904] |
| MC/19/242 | Letter from [Edward] T Dixon, Racketts, Hythe, Hants, to Dr [Joseph] Larmor | 13 November 1904 |
| MC/23/24 | Letter from [William Edward] Ayrton, Exhibition Road, London, to [Robert] Harrison, Assistant Secretary and Librarian, Royal Society | 6-21 March 1908 |
| MC/23/57 | Letter from [James Thomson] Bottomley, 13 University Gardens, Glasgow, to Messrs. Harrison & Sons, 45 St Martin's Lane | 30 May 1908 |
| MC/19/340 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 1 March 1904 |
| AP/78/3 | Unpublished paper, 'On the action of radium on gelatine' by John Butler Burke | 1906 |
| AP/78/4 | Unpublished paper, 'The bending of electric waves round a spherical obstacle' by J W [John William] Nicholson | 1908 |
| MC/19/339 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 23 February 1904 |
| MC/19/545 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 14 [March 1904] |
| MC/19/342 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 19 March 1904 |
| MC/19/343 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 25 April 1904 |
| NLB/37/138 | Copy letter from Robert William Frederick Harrison to Dr H [Hans Frederick] Gadow FRS | 30 January 1908 |
| MC/19/546 | Letter from [Joseph] Larmor, Belfast, to [Robert William Frederick] Harrison | 7 April 1904 |
| MC/23/166 | Letter from Arthur Gamgee, The Royal Society, Burlington House, London, to Professor [Joseph] Larmor | 21 October 1908 |
| MC/23/167 | Letter from [Walter Holbrook] Gaskell, The Uplands, Great Shelford, Cambridge, to [Joseph] Larmor | 8 March 1908 |
| MC/19/371 | Letter from [William Dobinson] Halliburton, Church Cottage, 17 Marylebone Road, to [Joseph] Larmor | 6 July 1904 |
| MC/23/179 | Letter from [Ernest] Gold, 3 Devana Terrace, Cambridge, to Professor [Joseph] Larmor | 26 June 1908 |
| MC/19/406 | Letter from Oliver Heaviside, Bradley View, Newton Abbot, to [Joseph] Larmor | 7 November 1904 |
| MC/23/201 | Letter from [John Scott] Haldane, Cherwell, Oxford, to Dr [Joseph] Larmor and Sir Archibald Geikie, [Royal Society] | 25 October 1908 |
| MC/23/200 | Letter from [Henry] Wilson Hake, Chemical Laboratory, Westminster Hospital Medical School, Caxton, Street, to Dr [Joseph] Larmor, [Royal Society] | 28 September 1908 |
| MC/23/202 | Letter from George [Ellery] Hale, Carnegie Institution of Washington, Mount Wilson Solar Observatory, Pasadena, California, to Dr [Joseph] Larmor, Secretary, Royal Society, Burlington House, London | 24 February 1908 |
| MC/19/547 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick Harrison] | 5 June [1904] |
| MC/23/261 | Letter from [Joseph Jackson] Lister, Moorcroft, Hillingdon, Uxbridge, to [Joseph] Larmor, [Royal Society] | 9 November 1908 |
| NLB/38/740 | Copy letter from Joseph Larmor, to Professor Hendrik Antoon Lorentz, Foreign Member of the Royal Society | 29 October 1908 |
| MC/23/281 | Letter from Macmillan, Board of Trade, S.W, to Mr [Robert] Harrison, [Royal Society] | 24 February 1908 |
| MC/23/275 | Letter from [Margaret Ethel] MacDonald, 3 Lincolns Inn Fields, London, W. C, to Dr [Joseph] Larmor, [Royal Society] | 11 February 1908 |
| NLB/39/165 | Copy letter from Robert William Frederick Harrison to [Henry Reginald] A [Arnulph] Mallock, Fellow of the Royal Society | 4 December 1908 |
| MC/23/293 | Letter from [George Ballard] Mathews, 10 Menai View, Bangor, to [Joseph] Larmor, [Royal Society] | 15 October 1908 |
| MC/19/404 | Letter from Alfred Hay, 35 Lissenden Mansion, Lissenden Gardens, Highgate Road, London, to Dr [Joseph] Larmor | 19 March 1904 |
| MC/19/439 | Letter from [Thomas William] Holderness, India Office, Whitehall, to Dr [Joseph] Larmor | 24 February 1904 |
| NLB/39/278 | Copy letter from Joseph Larmor to Weir Mitchell | 21 December 1908 |
| MC/23/309 | Letter from the Secretary of Dr [Ludwig] Mond, St John's Wood B, to Mr [Robert] Harrison, The Royal Society, Burlington House | November 1908 |
| NLB/38/690 | Copy letter from Joseph Larmor and Archibald Geikie, to Dr Frederick Walker Mott, Fellow of the Royal Society | 22 October 1908 |
| MC/23/312 | Letter from [Frederick Walker] Mott, 25 Nottingham Place, to Sir Archibald [Geikie], the Secretaries of the Royal Society | 23 October 1908 |
| MC/23/322 | Letter from [Francis Henry] Neville, Sidney Sussex College, Cambridge, to [Joseph] Larmor, the [Royal Society] | 11 June 1908 |
| MC/19/492 | Letter from [John] Joly, to [Joseph] Larmor | 12 July 1904 |
| NLB/38/692 | Copy letter from Joseph Larmor and Archibald Geikie, to Lieutenant-Colonel David Prain, Fellow of the Royal Society | 22 October 1908 |
| MC/23/364 | Letter from [Sir Dighton] Probyn, Keeper of His Majesty's Privy Purse, Buckingham Palace, to Professor [Joseph] Larmor, FRS, [Royal Society] | 31 October 1908 |
| MC/23/370 | Letter from [William] Ramsay, University College, Gower Street, London, to [Joseph] Larmor, [Royal Society] | 6 April 1908 |
| MC/24/35 | Letter from Oliver Lodge, Mariemont, Edgbaston, to Mr [Robert] Harrison, [Royal Society] | 9 February 1909 |
| MC/19/494 | Letter from [John] Joly, Royal Hotel, Valencia, Kerry Highlands, to [Joseph] Larmor | 3 August 1904 |
| MC/23/394 | Letter from [Henry Enfield] Roscoe, Logan's Low Wood Hotel, Windermere, to [Robert] Harrison, [Royal Society] | 5 August 1908 |
| MC/23/398 | Letter from Evelyn Shaw, [Assistant Secretary], 54 Victoria Street, Westminster, to Professor Joseph Larmor, Secretary Royal Society, Burlington House | 25 June 1908 |
| MC/19/542 | Memoranda to Professor [Joseph] Lamor | 6 February 1904 |
| MC/19/519 | Memorandum from Edwin Sharpe Grew, Editor of 'Knowledge and Scientific News', to Professor [Joseph] Larmor, The Royal Society, Burlington House | 18 January 1904 |
| MC/23/403 | Letter from [Thomas] Royds, Physical Laboratories, The University, Manchester, to Professor [Joseph] Larmor, [Royal Society] | 22 December 1908 |
| MC/23/407 | Letter from [Ernest] Rutherford, Physical Laboratories, The University, Manchester, to [Joseph] Larmor, [Royal Society] | 25 June 1908 |
| MC/19/557 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 9 December 1904 |
| MC/19/674 | Letter from Karl Pearson, Clements Field, Cogges, Oxon, to [Joseph] Larmor | 23 July 1904 |
| MC/19/550 | Letter from [Joseph] Larmor, to [Robert William Frederick Harrison] | 4 October 1904 |
| MC/19/552 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 14 October 1904 |
| MC/19/548 | Postcard to [Joseph] Larmor, to [Robert William Frederick] Harrison, The Royal Society, Burlington House, London | 14 September 1904 |
| MC/19/538 | Incomplete letter from an uknown correspondent, Burlington House, London, to Dr [Joseph] Larmor | 5 January 1904 |
| MC/19/522 | Letter from the Editor [Samuel Squire Sprigge], The Lancet Office, Strand, to Professor Joseph Larmor | 22 January 1904 |
| MC/19/539 | Memoranda from [Robert William Frederick] Harrison, to Professor [Joseph] Larmor, Secretary of the Royal Society | 12 January 1904 |
| MC/19/657 | Letter from R D Oldham, 1 Kensington Park Road, to Professor [Joseph] Larmor, Secretary of the Royal Society | 8 August 1904 |
| MC/19/690 | Letter from William Ramsay, University College, London, Gower Street, to [Joseph] Larmor | 19 December 1904 |
| NLB/38/688 | Copy letter from Joseph Larmor and Archibald Geikie, to Sir Arthur William Rucker, Fellow of the Royal Society | 22 October 1908 |
| MC/19/541 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 3 February 1904 |
| MC/23/459 | Letter from [Thomas Edward]Thorpe, Government Laboratory, London, WC, to [Joseph] Larmor, [Royal Society] | 29 May 1908 |
| MC/23/467 | Letter from [Robert Henry] Traill, 17 Erbury Road, Catford Hill, SE, to Sir Archibald Geikie KCB and [Professor Joseph] Larmor, Royal Society | 23 September 1908 |
| NLB/37/843 | Copy Letter from Robert William Frederick Harrison to Professor E [Edmund] T [Taylor] Whittaker, Fellow of the Royal Society, Dunsink Observatory, Co. Dublin | 22 May 1908 |
| MC/23/490 | Letter from [Arthur Mason] Worthington, Mohuns,Tavistock, to [Joseph] Larmor, [Royal Society] | 4 July 1908 |
| MC/23/491 | Letter from [Robert] Harrison, Burlington House, London, W, to [Joseph] Larmor, [Royal Society] | 6 July 1908 |
| MC/23/493 | Copy of letter from [Joseph] Larmor, The Royal Society, to [Arthur Mason] Worthington | 8 July 1908 |
| MC/23/450 | Letter from Rayleigh [John William Strutt], Terling Place, Witham, Essex, to [Joseph] Larmor | 1 June 1908 |
| MC/19/554 | Letter from [Joseph] Larmor, St John's College, to [Robert William Frederick] Harrison | 20 October 1904 |
| MC/24/22 | Letter from Horace Lamb, 6 Wilbraham Road, Fallowfield, Manchester, to Mr [Robert] Harrison | 28 February 1909 |
| NLB/39/590 | Copy letter from Robert William Frederick Harrison to Sir Oliver [Joseph] Lodge, Fellow of the Royal Society | 10 February 1909 |
| MC/19/646 | Letter from George Ellery Hale, National Academy of Sciences, Committee on Solar Research, Pasadena, to Professor [Joseph] Larmor, Secretary of the Royal Society | 8 July 1904 |
| MC/19/604 | Letter from David Orme Masson, The University of Melbourne, to Dr [Joseph] Larmor | 16 August 1904 |
| MC/19/689 | Letter from William Ramsay, University College, London, Gower Street, to [Joseph] Larmor | 27 November 1904 |
| MC/19/718 | Letter from Ernest Rutherford, The Macdonald Physics Building, McGill University, Montreal, to [Joseph] Larmor | 19 January 1904 |
| MC/19/614 | Letter from [Peter] Chalmers Mitchell, Secretary of the Zoological Society of London, 3 Hanover Square, to [Joseph] Larmor | 14 November 1904 |
| MS/603 | Letters to Sir Joseph Larmor, theoretical physicist and Physical Secretary of the Royal Society | 1881-1939 |
| MC/19/624 | Letter from Henry Forster Morley, International Catalogue of Scientific Literature, 34 & 35 Southampton Street, Strand, London, to Dr [Joseph] Larmor | 12 December 1904 |
| MC/19/688 | Letter from William Ramsay, University College, London, Gower Street, to [Joseph] Larmor | 25 November 1904 |
| MC/19/677 | Letter from John Perry, Board of Education, Royal College of Science, London, to [Joseph] Larmor | 1 June 1904 |
| MC/24/141 | Letter from [Ernest] Rutherford, 17 Wilmslow Road, Withington, Manchester, to [Joseph] Larmor, [Royal Society] | 13 March 1909 |
| MC/24/143 | Letter from [Ernest] Rutherford, 17 Wilmslow Road, Withington, Manchester, to [Joseph] Larmor, [Royal Society] | 2 November 1909 |
| MC/19/743 | Letter from Adam Sedgwick, Trinity College, Cambridge, to [Joseph] Larmor | 16 April 1904 |
| MC/24/171 | Letter from [John] Benjamin Stone, to [Robert] Harrison, [Royal Society] | 1909 |
| MC/24/172 | Letter from [George] Johnstone Stoney, 30 Chepstow Crescent, London, to [Joseph] Larmor, [Royal Society] | 12 May 1909 |
| NLB/40/658 | Copy letter from Robert William Frederick Harrison to C G Stromeyer, Hotel York, Berners Street, W | 14 July 1909 |
| MC/19/720 | Letter from Ernest Rutherford, The Macdonald Physics Building, McGill University, Montreal, to [Joseph] Larmor, Secretary of the Royal Society | 13 November 1904 |
| MC/24/179 | Letter from RJ Sutton, P.O. Box 142, Kimberley, [South] Africa, to the [Royal Society] | 24 June 1909 |
| MC/19/755 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor | 8 October 1904 |
| MC/19/727 | Letter from Arthur Schuster, Victoria Park, Manchester, to [Joseph] Larmor | 22 July 1904 |
| MC/24/204 | Letter from Gilbert [Thomas] Walker, India Meteorological Department, Simla, to Sir Joseph Larmor, Secretary of the Royal Society, Burlington House, London | 2 December 1909 |
| MC/24/211 | Letter from [Harold Albert] Wilson, 8 The Pryors, Hampstead, NW, to [Joseph] Larmor, [Royal Society] | 23 April 1909 |
| MC/25/12 | Letter from [Herbert Brereton] Baker, 5 Norham Gardens, Oxford, to [Joseph Larmor], [Royal Society] | 14 June 1910 |
| MC/25/19 | Letter from [William] Bateson, The Manor House, Merton, Surrey, to [Joseph] Larmor, [Royal Society] | 30 November 1910 |
| MC/19/759 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor | 15 December 1904 |
| MC/19/726 | Letter from Arthur Schuster, The Physical Laboratories, The Queens College, Manchester, to [Joseph] Larmor | 5 July 1904 |
| MC/19/749 | Letter from George Senter, 37 Ronalds Road, Highbury, to Professor [Joseph] Larmor, Secretary of the Royal Society | 30 September 1904 |
| MC/19/811 | Letter from Akademie der Wissenschaften, to Professor [Joseph] Larmor | 31 July 1904 |
| MC/19/754 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor | 27 September 1904 |
| MC/25/60 | Letter from [John Louis Emil] Dreyer, The Observatory, Armagh, to The Assistant Secretary, Royal Society | 6 July 1910 |
| MC/19/784 | Letter from James Stirling, Finchcocks, Goudhurst, Kent, to Professor [Joseph] Larmor | 18 October 1904 |
| MC/19/752 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to Professor [Joseph] Larmor, The Royal Society | 7 January 1904 |
| MC/25/72 | Letter from JA Fleming, Peuder Electrical Laboratory, University College, Gower Street, WC, to Sir Joseph Larmor, Secretary, The Royal Society | 9 November 1910 |
| MC/19/758 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor | 19 October 1904 |
| MC/19/793 | Letter from [William Turner] Thiselton-Dyer, Director of Royal Gardens, Kew, to Ptofessor [Joseph] Larmor | 15 November 1904 |
| MC/19/805 | Letter from [Herbert Hall] Turner, University Observatory, Oxford, to Professor [Joseph] Larmor, Secretary of the Royal Society | 18 June 1904 |
| MC/19/788 | Letter from [Donald Alexander Smith], 28 Grosvenor Square, to Joseph Larmor, Secretary of the Royal Society, Burlington House, Piccadilly | 25 June 1904 |
| MC/19/806 | Letter from [Herbert Hall] Turner, University Observatory, Oxford, to Professor [Joseph] Larmor, Secretary of the Royal Society | 19 June 1904 |
| MC/25/106 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Joseph] Larmor, [Royal Society] | 4 May 1910 |
| MC/25/113 | Letter from William Huggins, 90 Upper Tulse Hill, SW, to Mr [Robert] Harrison, [Royal Society] | 10 March 1910 |
| NLB/43/105 | Copy letter from Joseph Larmor, to Professor John Joly, Fellow of the Royal Society | 7 November 1910 |
| MC/25/110 | Letter from William Huggins, 90 Upper Tulse Hill, SW, to Mr [Robert] Harrison, [Royal Society] | 20 February 1910 |
| MC/19/807 | Letter from [Herbert Hall] Turner, University Observatory, Oxford, to Professor [Joseph] Larmor, Secretary of the Royal Society | 22 November 1904 |
| MC/19/846 | Letter from [William] Wharton, Florys, Prince's Road, Wimbledon Park, to [Joseph] Larmor | 2 November 1904 |
| MC/23 | Volume 23 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1908 |
| MC/25/190 | Letter from Arthur [Alcock] Rambert, Radcliffe Observatory, Oxford, to Sir Joseph Larmor, [Royal Society] | 19 May 1910 |
| MC/25/193 | Letter from [William] Ramsay, University College, Gower Street, London, W.C, to [Joseph] Larmor | 26 May 1910 |
| MC/20/15 | Letter from Charles Chree, The National Physical Laboratory (Kew Observatory Department), Richmond, Surrey, to [Joseph] Larmor | 16 January 1905 |
| MC/25/168 | Letter from Stafford Northcote, Secretary, Intelligence Office, St Stephen's House, Westminster, to Sir Joseph Larmor, [Royal Society] | 19 July 1910 |
| MC/20/115 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 25 November 1905 |
| MC/25/209 | Letter from Arthur [William] Rucker, M4, Artillery Mansions, Victoria Street, S.W, to Sir Joseph Larmor, [Royal Society] | 16 March 1910 |
| MC/25/211 | Letter from [Ernest] Rutherford, 17 Wilmslow Road, Withington, Manchester, to [Joseph] Larmor, [Royal Society] | 30 January 1910 |
| MC/20/18 | Letter from Charles Chree, The National Physical Laboratory (Kew Observatory Department), Richmond, Surrey, to [Joseph] Larmor | 12 July 1905 |
| MC/20/111 | Memoranda to Professory [Joseph] Larmor, Secretary of the Royal Society | 15 July 1905 |
| MC/25/189 | Letter from Walter [Matthew] Gibson, Secretary, His Majesty's Privy Purse, Privy Purse Office, Buckingham Palace, to Professor [Joseph] Larmore [sic.], Secretary, The Royal Society | 29 November 1910 |
| MC/20/20 | Letter from Charles Chree, The National Physical Laboratory (Kew Observatory Department), Richmond, Surrey, to [Joseph] Larmor | 16 November 1905 |
| MC/25/233 | Letter from [William Napier] Shaw, 10 Morton Gardens, Old Brompton Road, S.W, to [Joseph] Larmor, [Royal Society] | 12 April 1910 |
| NLB/43/108 | Copy letter from Joseph Larmor, to Roland Trimen, Fellow of the Royal Society | 7 November 1910 |
| MC/20/47 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 25 January 1905 |
| MC/25/262 | Letter from [Herbert Hall Turner], B.A Seismology [Committee], University of Observatory, Oxford, to [Joseph] Larmor, [Royal Society] | 1 June 1910 |
| MC/20/107 | Memoranda from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 23 May 1905 |
| NLB/30/38 | Copy letter from Joseph Larmor and Archibald Geikie, to Sir Michael Foster, Fellow of the Royal Society | 20 January 1905 |
| MC/20/44 | Letter from [Archibald] Geikie, The Royal Society, Burlington House, London, to [Joseph] Lamor | 3 November 1905 |
| MC/25/217 | Letter from Arthur Schuster, Kent House, Victoria Park, Manchester, to The Assistant Secretary of the Royal Society, Burlington House, London, W | 20 December 1910 |
| MC/20/117 | Copy of a letter from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 11 December 1905 |
| MC/20/114 | Note from [Joseph Larmor] | [October 1905] |
| MC/20/113 | Memoranda from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 9 October 1905 |
| MC/26/11 | Letter from [Jons Oskar] Backlund, Pulkovo, [Russia], to Sir Joseph [Larmor], the [Royal Society] | 25 November 1911 |
| NLB/44/743 | Copy letter from Joseph Larmor to Professor Henry Edward Armstrong FRS | 3 November 1911 |
| MC/26/23 | Letter from Dr [Louis Agricola] Bauer, Carnegie Institution of Washington, Department of Research in Terrestrial Magnetism, Washington D.C, to Sir Joseph [Larmor], the [Royal Society] | 22 February 1911 |
| MC/26/46 | Letter from [Hugh Longbourne] Callendar, Imperial College of Science and Technology, Royal College of Science, South Kensington, London, S.W, to [Robert] Harrison, [Royal Society] | 15 June 1911 |
| MC/26/48 | Letter from [Sydney] Chapman, Royal Observatory, Greenwich, S. E, to Professor [Joseph] Larmor, [Royal Society] | 10 July 1911 |
| MC/26/51 | Letter from George Chrystal, Home Office, to Sir Joseph Larmor, [Royal Society] | 27 November 1911 |
| MC/26/50 | Letter from George Chrystal, 5 Belgrave Crescent, Edinburgh, to Sir Joseph Larmor, [Royal Society] | 4 November 1911 |
| MC/26/63 | Letter from James Dewar, Royal Institution of Great Britain, to [Joseph] Larmor, [Royal Society] | 4 April 1911 |
| MC/26/69 | Post Office Telegraph from [Frederick George] Donnan, Liverpool, to Sir Joseph Larmor, Royal Society, London | July 1911 |
| MC/26/71 | Letter from [John Louis Emil] Dreyer, Observatory, Armagh, to Sir Joseph Larmor, [Secretary], [Royal Society] | 9 May 1911 |
| MC/26/107 | Letter from [John Allen] Harker, National Liberal Club, Whitehall Place, S.W, to Sir Joseph Larmor, [Royal Society] | 31 January 1911 |
| MC/26/105 | Letter from J. A Hardcastle, The Dial House, Crowthorne, to Sir Joseph Larmor, [Royal Society] | 25 November 1911 |
| MC/26/114 | Letter from [Nathaniel Joseph] Highmore, Harbybrowe, Worcester Park, Surrey, to Sir Joseph Larmor, The Royal Society | 6 November 1911 |
| MC/26/119 | Letter from [Reginald Hawthron] Hooker, The Camp, near Sunningdale, to Sir Joseph Larmor, FRS | 13 December 1911 |
| NLB/44/834 | Copy letter from Joseph Larmor to [John] Joly | 26 November 1911 |
| MC/26/122 | Letter from [John] Joly, to [Joseph] Larmor, [Royal Society] | 25 November 1911 |
| MC/26/139 | Letter from Sidney Lee, Dictionary of National Biography, 15 Waterloo Place, S.W, to Sir Joseph [Larmor] | 20 October 1911 |
| MC/26/160 | Letter from [Ernest R] Matthews, Borough Engineer, Borough of Bridlington, Town Hall, Bridlington, to Sir Joseph Larmor, [Secretary] of the Royal Society, Burlington House, S.W | 18 January 1911 |
| MC/26/189 | Letter from Charles [Algernon] Parsons, Holeyn Hall, Wylam-On-Tyne, to [Joseph] Larmor, [Royal Society] | 19 May 1911 |
| MC/21 | Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1906 |
| MC/26/209 | Letter from [William] Ramsay, University of London, University College, Gower Street, London, W.C, to [Joseph] Larmor, [Royal Society] | 10 November 1911 |
| MC/26/208 | Letter from [William] Ramsay, University of London, University College, Gower Street, London, W.C, to [Joseph] Larmor, [Royal Society] | 30 December 1911 |
| MC/26/226 | Letter from [Francis] Matthews, Royal Mint, London, E, to The Secretaries, Royal Society, Burlington House, W | 29 November 1911 |
| MC/26/231 | Letter from [Ernest] Rutherford, 17 Wilmslow, Withington, Manchester, to [Joseph] Larmor, [Royal Society] | 1 February 1911 |
| NLB/43/713 | Copy letter from Joseph Larmor, to Sir William Thiselton Dyer, Fellow of the Royal Society | 16 March 1911 |
| MC/26/264 | Letter from [Herbert Hall] Turner, University Observatory, Oxford, to [Joseph] Larmor, [Royal Society] | 30 January 1911 |
| MC/26/265 | Letter from [Herbert Hall] Turner, University Observatory, Oxford, to [Joseph] Larmor, [Royal Society] | 1 February 1911 |
| NLB/46/176 | Copy letter from Joseph Larmor, to [Henry Edward] Armstrong, [Fellow of the Royal Society | 21 June 1912 |
| MC/27/52 | Letter from A.R Waller, University Press, Cambridge, to The Secretary, The Royal Society, Burlington House, W | 23 May 1912 |
| MC/27/53 | Letter from A.R Waller, University Press, Cambridge, to Sir Joseph Larmor, St John's College | 31 May 1912 |
| MC/27/55 | Letter from W.H Nicks, The Cambridge University Press, Fetter Lane, London, to Robert Harrison, [Royal Society] | 6 June 1912 |
| MC/27/90 | Letter from [William] Duddell, 56 Victoria Street, Westminster, London, S.W, to Sir Joseph Larmor, The Royal Society, Burlington House | 9 November 1912 |
| MC/27/74 | Letter from E.W Newton, Secretary, Cornwall Joint Scientific Reception Committee, to Sir Joseph Larmor, [Secretary], Royal Society, Burlington House, W | 14 May 1912 |
| MC/27/122 | Letter from [George] Carey Foster, Ladywalk, Rickmansworth, Herts, to Mr [Robert] Harrison, [Royal Society] | 16 June 1912 |
| MC/20/106 | Memoranda from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 19 April 1905 |
| MC/27/157 | Letter from [Augustus George Vernon] Harcourt, St Clare, Ryde, Isle of Wight, to [Joseph] Larmor, [Royal Society] | 12 April 1912 |
| MC/27/156 | Letter from [Augustus] Vernon Harcourt, Runton Hill, West Runton, Norfolk, to [Joseph] Larmor, [Royal Society] | 30 April 1912 |
| MC/27/151 | Letter from George [Ellery] Hale, Foreign Secretary, National Academy of Sciences, Office of the Foreign Secretary, Pasadena, California, to Sir Joseph Larmor, Secretary, Royal Society, Burlington House, London, W | 27 August 1912 |
| MC/27/171 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Joseph] Larmor, [Royal Society] | 15 November 1912 |
| MC/20/104 | Memoranda from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 30 January 1905 |
| MC/27/172 | Letter from Sydney Hickson, The University, Manchester, to Sir Joseph Larmor, [Royal Society] | 22 January 1912 |
| MC/20/112 | Letter from [Joseph Larmor], St John's College, Cambridge, to The Royal Society | [October 1905] |
| MC/20/108 | Memoranda from [Robert William Frederick Harrison], to Professor [Joseph] Larmor, Secretary of the Royal Society | 3 June 1905 |
| MC/24 | Volume 24 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1909 |
| MC/27/177 | Letter from E.O Hoppe, 59 Baker Street, Portman Square, London, W, to Sir Joseph Larmor, Burlington House, W | 20 March 1912 |
| MC/20/274 | Letter from John Perry, Royal College of Science, London, South Kensington, [Joseph] Larmor | 6 February 1905 |
| MC/20/255 | Letter from [Francis Wall] Oliver, 2 The Vale, Chelsea, to [Joseph] Larmor, Secretary of the Royal Society | 14 May 1905 |
| MC/27/303 | Letter from D.J Scourfield, Chief Clerk, Royal Mint, London, E, to The Secretaries, Royal Society | 28 November 1912 |
| MC/20/109 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 15 June 1905 |
| MC/20/121 | Letter from [Joseph Jackson] Lister, St John's College, Cambridge, to [Joseph] Larmor | 1 March 1905 |
| MC/27/262 | Letter from [Heike] Kamerlingh Onnes, Leiden, Huize ter Watering, Haagweg, to Sir [Joseph] Larmor, Secretary, [Royal Society] | 12 November 1912 |
| MC/20/178 | Letter from John Milne, Shide, Newport, Isle of Wight, to [Joseph] Larmor | 26 January 1905 |
| MC/27/276 | Letter from Carrington, Privy Purse Office, Buckingham Palace, to Sir Joseph Larmor, Secretary, The Royal Society | 12 November 1912 |
| MC/27/297 | Letter from [Ronald] Ross, The Incorporated Liverpool School of Tropical Medicine, to [Joseph] Larmor, [Royal Society] | 26 February 1912 |
| NLB/46/666 | Copy letter from Joseph Larmor, to Professor [Grafton] Elliott Smith, Fellow of the Royal Society | 14 October 1912 |
| MC/27/322 | Letter from [William Napier] Shaw, Meteorological Office, South Kensington, London, S.W, to [Joseph] Larmor, [Royal Society] | 10 July 1912 |
| MC/27/338 | Letter from [William Turner] Thiselton-Dyer, The Ferns, Witcombe, Gloucester, to [Joseph] Larmor, [Royal Society] | 3 May 1912 |
| MC/27/339 | Letter from [Silvanus Phillips] Thompson, Morland, Chislett Road, West Hampstead, N.W, to [Joseph] Larmor, [Royal Society] | 17 February 1912 |
| MC/20/361 | Letter from Felix Semon, 39 Wimpole Street, Cavendish Square, London, to Dr [Joseph] Larmor, Secretary of the Royal Society | 19 January 1905 |
| MC/20/457 | Letter from Sydney [Howard] Vines, Headington Hill, Oxford, to Professor [Joseph] Larmor | 28 January 1905 |
| NLB/30/95 | Copy letter from Joseph Larmor, to Professor Sidney Howard Vines, Fellow of the Royal Society | 28 January 1905 |
| MC/28/122 | Letter from [George Ellery] Hale, National Academy of Sciences, Office of the Foreign Secretary, Pasadena, California, to Robert Harrison, Esquire, Assistant Secretary, Royal Society Burlington House, London | 10 January 1913 |
| MC/21/227 | Letter from [Arhcibald Geikie], 3 Sloane Court, to [Joseph] Larmor | 27 March 1906 |
| MC/21/21 | Letter from W S Lazarus-Barlow, Cancer Research Laboratories, The Middlesex Hospital, to Dr [Joseph] Larmor | 20 July 1906 |
| MC/21/40 | Letter from [William Robert] Bousfield, St Swithins, Hendon, to Professor [Joseph] Larmor | 6 February 1906 |
| MC/21/111 | Letter from William Henry Mahoney Christie, Royal Observatory, Greenwich, London, to [Joseph] Larmor | 1906 |
| MC/21/133 | Letter from [Francis] Darwin, 13 Madingley Road, Cambridge, to [Joseph] Larmor | 19 March 1906 |
| MC/21/139 | Postcard from [George Howard] Darwin, Cambridge, to Professor [Joseph] Larmor | 1906 |
| MC/21/141 | Letter from R Davy, 112 Market Jew Street, Penzance, to [Joseph] Larmor, Secretary of the Royal Society, Burlington House | 6 October 1908 |
| MC/29/96 | Letter from George Green, Natural Philosophy Department, University of Glasgow, to The Secretary, The Royal Society, Burlington House, London, W | 9 October 1914 |
| MC/21/168 | Letter from Reginald [Graham] Durrant, The College, Marlborough, to [Joseph] Larmor | 28 October 1906 |
| MC/21/172 | Letter from [Frank Watson] Dyson, Royal Observatory, Edinburgh, to [Joseph] Larmor | 24 April 1906 |
| MC/21/181 | Letter from John Eliot, 79 Alleyn Park, Dulwich, to [Joseph] Larmor | 24 April 1906 |
| MC/21/184 | Letter form John Eliot, The Grand Hotel, Harrogate, to Dr [Joseph] Larmor | 9 July 1906 |
| MC/21/183 | Memorandum from [Robert William Frederick Harrison], The Royal Society, to Professor [Joseph] Larmor | 12 June 1906 |
| MC/21/204 | Incomplete letter from Pender Electrical Laboratory, University College, Gower Street, London, to Professor [Joseph] Larmor, Secretary of the Royal Society, St John's College, Cambridge | 13 March 1906 |
| MC/21/206 | Letter from [John Ambrose] Fleming, Pender Electrical Laboratory, University College, Gower Street, London, to Professor [Joseph] Larmor, Secretary of the Royal Society | 23 May 1906 |
| MC/29/79 | Letter from [William] Galloway, Mining Engineer, 19 Park Place, Cardiff, to Robert Harrison, Assistant Secretary [Royal Society], Burlington House, Piccadilly, W | 25 April 1914 |
| MC/18/147 | Letter from [Robert William Frederick] Harrison, Assistant Secretary of the Royal Society, to Dr [Joseph] Larmor | 10 March 1903 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |
| MC/19/27 | Letter from [?], Club Secretary of the Automobile Club, 119 Piccadilly, London, to Dr [Joseph] Larmor, Secretary of the Royal Society | 7 March 1904 |
| MC/19/91 | Letter from the President of the British Medical Journal, 2 Agar Street, Strand, London, to Professor Joseph Larmor and Sir Archibald Geikie, Secretaries of the Royal Society | 8 February 1904 |
| MC/19/148 | Letter from [John Young] Buchanan, to Professor [Joseph] Larmor, Secretary of the Royal Society | 19 March 1904 |
| MC/19/572 | Letter from [Augustus Edward Hough] Love, 34 St Margaret's Road, Oxford, to [Robert William Frederick] Harrison | 15 December 1904 |
| MC/18 | Volume 18 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1903 |
| MC/20 | Volume 20 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1905 |
| MC/20/191 | Letter from [Peter] Chalmers Mitchell, Zoological Society of London, 3 Hanover Square, to [Joseph] Larmor, Secretary of the Royal Society | 19 January 1905 |
| MC/20/362 | Letter from Felix Semon, 39 Wimpole Street, Cavendish Square, London, to Dr [Joseph] Larmor | 23 January 1905 |
| MC/21/251 | Letter from [James] William Gifford, Oaklands, Chard, to [Joseph] Larmor | 16 September 1906 |
| MC/21/259 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 3 January 1906 |
| MC/21/260 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | [January 1906] |
| MC/21/281 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor, St John's College, Cambridge | 4 December 1906 |
| MC/21/298 | Letter from [William Bate] Hardy, Newnham Lea, Cambridge, to [Joseph] Larmor | 2 September 1906 |
| MC/30/110 | Letter from Joseph Larmor, St John's College, Cambridge, to The Secretaries, Royal Society | 18 November 1915 |
| MC/30/111 | Letter from [John Gaston] Leathem, St John's College, Cambridge, to The Assistant Secretary, Royal Society | 19 June 1915 |
| MC/21/420 | Letter from E F J Love, The University of Melbourne, to [Joseph] Larmor | 30 July 1906 |
| MC/21/374 | Letter from [Joseph] Larmor, to [Robert William Frederick] Harrison | 8 July 1906 |
| MC/21/373 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 18 May 1906 |
| NLB/32/115 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 5 January 1906 |
| MC/21/371 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert William Frederick] Harrison | 5 May 1906 |
| MC/21/372 | Memorandum from [Robert William Frederick] Harrison, Assistant Sercetary of the Royal Society, to Professor Lamor, Secretary of the Royal Society | 14 May 1906 |
| MC/21/375 | Letter from [Robert William Frederick] Harrison, Burlington House, London, to Dr [Joseph] Larmor | 19 October 1906 |
| MC/30/159 | Letter from the Keeper of the Privy Purse, Privy Purse Office, Buckingham Palace, S.W, to The Secretaries of the Royal Society, Burlington House, W | 16 November 1915 |
| MC/21/565 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor | 16 January 1906 |
| MC/21/461 | Letter from [Andrew] Noble, Chillingham Castle, Belford, Northumberland, to Professor [Joseph] Larmor | 15 July 1906 |
| MC/21/487 | Letter from Karl Pearson, 7 Well Road, Hampstead, to [Joseph] Larmor | 14 May 1906 |
| MC/21/512 | Letter from [?], Assistant Secretary to His Majesty's Privy Purse, Buckingham Palace, [Joseph] Larmor, Secretary of the Royal Society | 23 November 1906 |
| MC/21/511 | Letter from Dighton Macnaghten Probyn, Keeper of His Majesty's Privy Purse, Buckingham Palace, [Joseph] Larmor, Secretary of the Royal Society | 2 November 1906 |
| MC/21/530 | Letter from Thomas Lewis, Honorary Secretary of the Royal Astronomical Society, to the Professor [Joseph] Larmor | 17 December 1906 |
| MC/21/549 | Letter from Arthur Schuster, Victoria Park, Manchester, to [Joseph] Larmor | 22 May 1906 |
| MC/21/552 | Letter from [Philip Lutley] Sclater, Odiham Priory, Winchfield, to Professor [Joseph] Larmor | 20 May 1906 |
| MC/21/556 | Letter from [Dukinfield Henry] Scott, Oakley, Hants, to Dr [Joseph] Larmor | 12 November 1906 |
| MC/21/568 | Letter from [William Napier] Shaw, Meteorological Office, 63 Victoria Street, London, to [Joseph] Larmor, Secretary of the Royal Society, Burlington House | 18 December 1906 |
| MC/21/571 | Letter from [William Ashwell] Shenstone, Clifton College, Clifton, Bristol, to [Joseph] Larmor | 9 May 1906 |
| NLB/52/599 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Larmor, FRS | 27 January 1916 |
| MC/31/92 | Letter from [Joseph] Larmor, St John's College, Cambridge, to [Robert] Harrison, [Royal Society] | 28 January 1916 |
| MC/21/608 | Letter from William Turner Thiselton-Dyer, Director of Royal Gardens Kew, to [Joseph] Larmor | 3 April 1906 |
| MC/21/618 | Letter from [Thomas Edward] Thorpe, Government Laboratory, Clement's Inn Passage, Strand, London, to Professor [Joseph] Larmor, The Royal Society, Burlington House | 8 December 1906 |
| MC/21/625 | Letter from [Frederick Thomas] Trouton, Physical Department, University College, London, to [Joseph] Larmor | 4 March 1906 |
| MC/21/657 | Letter from [Meyer] Wilderman, Winnington Hall, Northwich, to [Joseph] Larmor, Secretary of the Royal Society | 24 January 1906 |
| MC/21/665 | Letter from [William Edward] Wilson, Daramona, Streete, Westmeath, to [Joseph] Larmor | 24 June 1906 |
| MC/21/666 | Letter from [William Edward] Wilson, Daramona, Streete, Westmeath, to [Joseph] Larmor | 29 June 1906 |
| MC/22/103 | Letter from [Augustus] Vernon Harcourt, St Clare, Ryde, Isle of Wight, to [Joseph] Larmor | 2 January 1907 |
| MC/22/171 | Letter from [Joseph] Larmor, on board RMS Majestic, to [Robert William Frederick] Harrison | 24 April 1907 |
| MC/22/170 | Letter from [Joseph Larmor] | [1907] |
| MC/22/169 | Letter from [Joseph] Larmor, to [Robert William Frederick] Harrison | 18 December 1906 |
| MC/32/168 | Letter from [Joseph] Larmor, to [Arthur] Schuster, [Royal Society] | 27 July 1917 |
| MC/32/228 | Letter from Arthur Schuster, Yeldall, Twyford, Berks, to Mr [Robert] Harrison, [Royal Society] | 1 August 1917 |
| MC/32/277 | Letter from G.W. Morden, 8 Waterloo Place, London, S.W., to Sir Joseph Larmor, Cambridge Shire, Cambridge | February 1917 |
| MC/22/340 | Letter from [John Henry] Poynting, 10 Ampton Road, Edgbaston, Birmingham, to [Joseph] Larmor | 13 June 1907 |
| MC/22/377 | Letter from Arthur Schuster, Victoria Park, Manchester, to Professor [Joseph] Larmor, Cambridge | 7 January 1907 |
| MC/33/150 | Letter from Edward [Albert] Schafer, Marly Knowe, North Berwick, to Sir Joseph [Larmor], Royal Society | 30 April 1918 |
| MC/22/452 | Letter from [Thomas Edward] Thorpe, Government Laboratory, London, to [Joseph] Larmor | 15 January 1907 |
| MC/22/525 | Letter from A F [?], Woodlands, Westcombe Park, Blackheath, to Joseph Larmor, The Royal Society, Burlington House | 10 December 1907 |
| MC/21/271 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 10 June 1906 |
| MC/21/276 | Letter from [Richard Tetley] Glazebrook, The National Physical Laboratory, Bushy House, Teddington, Middlesex, to [Joseph] Larmor | 30 October 1906 |
| MC/22/184 | Letter from Joseph Norman Lockyer, Board of Education, Solar Physics Observatory, South Kensington, London, to [Joseph] Larmor | 18 October 1907 |
| MC/22/197 | Letter from [Henry George] Lyons, Hazelrise, Hindhead, Haslemere, to Dr [Joseph] Larmor | 26 June 1907 |