| RefNo | Title | Date |
| MS/928/6/2/10 | Note from Joseph John Thomson, Trinity Lodge, Cambridge, to Charles Vernon Boys | 24 May 1921 |
| NLB/18/727 | Copy letter from Robert William Frederick Harrison, to Professor J J Thomson, Fellow of the Royal Society | 29 April 1899 |
| MM/17/45 | Letter from JJ Thomson to Arthur Schuster | 13 December 1915 |
| EC/1884/19 | Thomson, Sir Joseph John: certificate of election to the Royal Society | |
| MM/9/39 | Letter from JJ Thomson, Trinity Lodge, Cambridge, to AW Porter | 5 January 1933 |
| IM/004428 | Strutt, John William, 3rd Baron Rayleigh, and Thomson, Sir Joseph John | 1898 |
| MM/9/23 | Letter from JJ Thomson, Cavendish Laboratory, Cambridge, to AW Porter | 18 February 1898 |
| PB/1/21 | Photocopies of letters of biographical interest. The originals are held by Lady Blackett. Some other photcopies have been distributed to the appropriate folders (see A.11, A.14, A.17, A.24, A.34) | |
| CMB/36/31 | Minutes, meeting of the War Committee | 6 December 1917 |
| PP/14/13/1 | Manuscript, 'The specific resistance of sulphur and other properties' by James Monckman | 1888 |
| CMB/36/30 | Minutes, meeting of the War Committee | 30 November 1917 |
| CMB/36/37 | Minutes, meeting of the War Committee | 28 February 1918 |
| NLB/66/32 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir William [Henry] Bragg, FRS | 12 February 1924 |
| IM/004554 | Thomson, Sir Joseph John | nd |
| P/0131 | Portrait of Thomson, Sir Joseph | 1922 |
| NLB/27/574 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 23 October 1903 |
| NLB/7/500 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 3 March 1893 |
| NLB/57/145 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Prehistoric Society of East Anglia | 29 July 1919 |
| NLB/1/611 | Copy letter from Herbert Rix, to Professor Jospeh John Thomson | 6 October 1887 |
| NLB/2/321 | Copy letter from Professor Joseph John Thomson, Fellow of the Royal Society | 23 April 1888 |
| NLB/4/670 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 18 September 1890 |
| NLB/3/223 | Copy letter from Herbert Rix, to Professor Joseph John Thomson | 12 April 1889 |
| NLB/3/301 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 3 May 1889 |
| NLB/3/709 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 21 September 1889 |
| NLB/3/717 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society, Trinity College, Cambridge | 25 September 1889 |
| NLB/5/408 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 4 June 1891 |
| NLB/5/460 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 15 June 1891 |
| NLB/5/421 | Copy letter from Herbert Rix, to Professor Joseph James Thomson, Fellow of the Royal Society | 6 June 1891 |
| NLB/5/451 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, [Fellow of the Royal Society] | 13 June 1891 |
| NLB/5/535 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 8 July 1891 |
| NLB/5/616 | Copy letter from Herbert Rix, to Dr Hugo Müller, Fellow of the Royal Society | 23 July 1891 |
| NLB/7/550 | Copy letter from Herbert Rix, to the Secretary, Clarendon Press, Oxford | 10 March 1893 |
| NLB/22/354 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph John] Thomson, Fellow of the Royal Society | 30 April 1901 |
| NLB/7/629 | Copy letter from Herbert Rix, to Professor Joseph John Thomson | 25 March 1893 |
| NLB/5/860 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 6 November 1891 |
| NLB/5/818 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 28 October 1891 |
| NLB/7/557 | Copy letter from Herbert Rix, to P Lyttelton Gell, The Clarendon Press, Oxford | 13 March 1893 |
| NLB/5/933 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 20 November 1891 |
| NLB/10/404 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 20 November 1894 |
| NLB/10/260 | Copy letter from Lord Rayleigh [John William Strutt], to the Right Honourable General Sir Henry Frederick Ponsonby | 1 November 1894 |
| NLB/10/332 | Copy letter from Michael Foster, to Professor Joseph John Thomson, Fellow of the Royal Society | 9 November 1894 |
| NLB/10/533 | Copy letter from Herbert Rix, to Professor Joseph John Thomson | 12 December 1894 |
| NLB/11/529 | Copy letter from an unknown correspondent, to Mr Collings | 17 July 1895 |
| NLB/10/623 | Copy letter from Herbert Rix, to Professor Joseph John Thompson | 4 January 1895 |
| NLB/11/561 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 23 July 1895 |
| NLB/10/557 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 18 December 1894 |
| NLB/9/506 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 29 May 1894 |
| NLB/11/485 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 12 July 1895 |
| NLB/11/646 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 24 August 1895 |
| NLB/11/633 | Copy letter from Theodore E James, to Professor Joseph John Thomson, Fellow of the Royal Society | 20 August 1895 |
| NLB/11/878 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 25 October 1895 |
| NLB/9/966 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 31 July 1894 |
| NLB/13/392 | Copy letter from Theodore E James, to Sir Joseph Lister, Fellow of the Royal Society, Foley Arms Hotel, Malvern | 14 August 1896 |
| NLB/13/325 | Copy letter from Michael Foster, to Professor Francis Landey Patton, President, Princeton University, New Jersey, United States of America | 24 July 1896 |
| NLB/12/567 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 16 March 1896 |
| NLB/13/409 | Copy letter from Theodore E James, to Professor Joseph John Thomson, Fellow of the Royal Society, Trinity College, Cambridge | 22 August 1896 |
| NLB/12/864 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 21 May 1896 |
| NLB/14/211 | Copy letter from Arthur William Rucker, to Richard Tetley Glazebrook, [Fellow of the Royal Society] | 22 January 1897 |
| NLB/14/151 | Copy letter from Arthur William Rucker, to Richard Tetley Glazebrook, [Fellow of the Royal Society] | 13 January 1897 |
| NLB/14/210 | Copy letter from Theodore E James, to Richard Tetley Glazebrook, Fellow of the Royal Society | 22 January 1897 |
| NLB/58/118 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 16 March 1920 |
| NLB/14/264 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 5 February 1897 |
| RR/15/237 | Referee's report by Joseph Johnson Thomson, on a paper 'The action of magnetised electrodes upon electrical discharge phenomena in rarefied gases' by C E S Phillips | April 1901 |
| NLB/14/459 | Copy letter from Arthur William Rucker, to Richard Tetley Galzebrook, Fellow of the Royal Society | 15 March 1897 |
| NLB/27/134 | Copy letter from Joseph Larmor, to Professor Joseph John Thomson, [Fellow of the Royal Society] | 8 July 1903 |
| NLB/15/50 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 14 June 1897 |
| NLB/16/150 | Copy letter from Robert William Frederick Harrison, to R T Glazebrook, [Fellow of the Royal Society] | 11 February 1898 |
| NLB/16/27 | Copy letter from Arthur William Rucker, to [Prof G H] Darwin | 14 January 1898 |
| NLB/18/554 | Copy letter from Robert William Frederick Harrison, to Professor J J Thomson, Fellow of the Royal Society | 29 March 1899 |
| NLB/16/297 | Copy letter from Robert William Frederick Harrison, to Professor J J Thomson, Fellow of the Royal Society | 9 March 1898 |
| NLB/17/446 | Copy letter from Arthur William Rucker, to Richard Tetley Glazebrook, Fellow of the Royal Society | 3 November 1898 |
| NLB/16/860 | Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society (Chairman of the Mathematical Committee) | 22 June 1898 |
| NLB/17/782 | Copy letter from Arthur William Rucker, to Richard Tetley Glazebrook, Fellow of the Royal Society | 19 December 1898 |
| NLB/19/312 | Copy letter from Robert William Frederick Harrison, to Professors Joseph John Thomson and Professor Arthur Schuster, [Fellows of the Royal Society] | 2 August 1899 |
| NLB/18/580 | Copy letter from Robert William Frederick Harrison, to Professor [George] Carey Foster, Fellow of the Royal Society | 6 April 1899 |
| NLB/18/614 | Copy letter from Robert William Frederick Harrison, to Professor J J Thomson, Fellow of the Royal Society | 11 April 1899 |
| NLB/19/445 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 5 October 1899 |
| NLB/19/817 | Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society | 3 January 1900 |
| NLB/20/202 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 22 February 1900 |
| NLB/18/641 | Copy letter from Robert William Frederick Harrison, to Professor [Arthur William] Rucker, Secretary of the Royal Society | 14 April 1899 |
| NLB/20/201 | Copy letter from Robert William Frederick Harrison, to the Secretary of the Royal Meteorological Society, Prince Mansions, 70 Victoria Street,S.W. | 22 February 1900 |
| NLB/20/703 | Copy letter from Robert William Frederick Harrison, to Professor George Francis Fitzgerald, Fellow of the Royal Society | 19 June 1900 |
| NLB/20/701 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 19 June 1900 |
| NLB/21/3 | Copy letter from Robert William Frederick Harrison, to the Under Secretary of State for Foreign Affairs, Foreign Office,S.W. | 14 July 1900 |
| NLB/21/9 | Copy letter from Robert William Frederick Harrison, to Professor George Francis Fitzgerald, Fellow of the Royal Society, The University of London, South Kensington, S.W. | 16 July 1900 |
| NLB/22/261 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph John] Thomson, Fellow of the Royal Society | 1 April 1901 |
| NLB/21/206 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 27 September 1900 |
| NLB/23/2/253 | Copy letter from Sir Michael Foster, to The Deputy Master, Royal Mint, E. | 6 November 1902 |
| NLB/22/529 | Copy letter from Robert William Frederick Harrison, to Professor [Joseph John] Thomson, Fellow of the Royal Society | 30 May 1901 |
| NLB/23/2/260 | Copy letter from Sir Michael Foster, to Professor Joseph John Thomson, Fellow of the Royal Society | 6 November 1902 |
| NLB/23/2/151 | Copy letter from Sir Michael Foster, to Joseph John Thomson, Fellow of the Royal Society | 16 December 1901 |
| NLB/23/1/266 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 18 October 1901 |
| NLB/23/1/583 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 7 December 1901 |
| NLB/54/107 | Copy letter from Joseph John Thomson, President of the Royal Society; to Mrs Tylor, [Wife of Sir Edward Burnet Tylor, FRS] | 6 February 1917 |
| NLB/54/111 | Copy letter from Joseph John Thomson, President of the Royal Society; to Mrs Chauveau, [Wife of Professor Jean Baptiste Auguste Chauveau, FRS] | 7 February 1917 |
| NLB/25/713 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 12 December 1902 |
| NLB/54/106 | Copy letter from Joseph John Thomson, President of the Royal Society; to Mrs Worthington, [Wife of Professor Arthur Mason Worthington, FRS] | 7 February 1917 |
| NLB/54/108 | Copy letter from Joesph John Thomson, President of the Royal Society; to Mrs Oliver, [Wife of Professor Daniel Oliver, FRS] | 6 February 1917 |
| NLB/23/2/380 | Copy letter from Joseph Larmor, to Professor Joseph John Thomson, Fellow of the Royal Society | 22 October 1903 |
| NLB/27/664 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thompson, Fellow of the Royal Society | 11 November 1903 |
| NLB/32/72 | Copy letter from Robert William Frederick Harrison, to Professor Herbert Hall Turner, Fellow of the Royal Society | 21 December 1905 |
| NLB/32/137 | Copy letter from Robert William Frederick Harrison, to Professor Herbert Hall Turner, Fellow of the Royal Society | 12 January 1906 |
| NLB/33/683 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 19 October 1906 |
| NLB/36/386 | Copy letter from Robert William Frederick Harrison, to Professor Joseph John Thomson, Fellow of the Royal Society | 23 October 1907 |
| 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/42/185 | Copy letter from Robert William Frederick Harrison to Professor Sir J [Joseph] J [John] Thomson FRS | 21 April 1910 |
| NLB/42/113 | Copy letter from Robert William Frederick Harrison to Sir Joseph Thomson FRS | 6 April 1910 |
| NLB/44/184 | Copy letter from Joseph Larmor to Professor Sir J [Joseph] J [John] Thomson FRS | 23 May 1911 |
| NLB/46/585 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Thomson, Fellow of the Royal Society | 30 September 1912 |
| NLB/44/185 | Copy letter from Joseph Larmor to Professor Sir J [Joseph] J [John] Thomson FRS | 23 May 1911 |
| NLB/43/459 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Thomson, Fellow of the Royal Society | 20 January 1911 |
| NLB/48/104 | Copy letter from Robert William Frederick Harrison, to Sir Joseph John Thomson, Fellow of the Royal Society | 19 May 1913 |
| NLB/58/924 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 5 July 1920 |
| NLB/46/310 | Copy letter from Robert William Frederick Harrison, to Sir Joseph John Thomson, Fellow of the Royal Society | 9 July 1912 |
| NLB/58/142 | Copy letter from [James Hopwood Jeans, Secretary of the Royal Society]; to Sir Joseph [John] Thomson, President of the Royal Society | 18 March 1920 |
| NLB/48/703 | Copy letter from Robert William Frederick Harrison, to Sir [Joseph John] Thomson, Fellow of the Royal Society | 29 September 1913 |
| NLB/48/139 | Copy letter from Robert William Frederick Harrison, to Sir Joseph [John] Thomson, [Fellow of the Royal Society] | 24 May 1913 |
| NLB/48/39 | Copy letter from Robert William Frederick Harrison, to Sir [John] Joseph Thomson, [Fellow of the Royal Society] | 30 April 1913 |
| NLB/48/97 | Copy letter from Robert William Frederick Harrison, to Sir Joseph John Thomson, Fellow of the Royal Society | 15 May 1913 |
| NLB/48/324 | Copy letter from Robert William Frederick Harrison, to Sir [Joseph John] Thomson, Fellow of the Royal Society | 16 June 1913 |
| NLB/48/155 | Copy letter from Robert William Frederick Harrison, to Sir [Joseph John] Thomson, Fellow of the Royal Society | 26 May 1913 |
| NLB/47/27 | Copy letter from Robert William Frederick Harrison to Professor Sir J [Joseph] J [John] Thomson OM, FRS | 15 November 1912 |
| NLB/47/10 | Copy letter from Robert William Frederick Harrison to Professor Sir J [Joseph] J [John] Thomson OM, FRS | 13 November 1912 |
| NLB/51/93 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Sir Joseph John Thomson OM, FRS | 11 December 1914 |
| NLB/50/200 | Copy letter from Robert William Frederick Harrison, to Sir [Joseph John] Thomson, Fellow of the Royal Society | 22 May 1914 |
| NLB/57/723 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs Constable & Co Ltd; 10 Orange Street, WC 2 | 28 January 1920 |
| NLB/54/633 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 9 July 1917 |
| NLB/51/49 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Sir Joseph John Thomson OM, FRS | 27 November 1914 |
| NLB/52/662 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 8 February 1916 |
| NLB/50/803 | Copy letter from Arthur Schuster, to Sir Joseph John Thomson, Fellow of the Royal Society | 5 November 1914 |
| NLB/52/652 | Copy letter from Joseph John Thomson, President of the Royal Society; to Miss Roscoe, Daughter of Sir Henry Enfield Roscoe | 3 February 1916 |
| NLB/52/182 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor Joseph John Thomson, FRS | 7 October 1915 |
| NLB/53/134 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, O.M., PRS | 5 May 1916 |
| NLB/54/555 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 18 June 1917 |
| NLB/55/833 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 14 October 1918 |
| NLB/54/224 | Copy letter from Joseph John Thomson, President of the Royal Society; to Dr. [Dukinfield Henry] Scott, FRS | Undated |
| NLB/52/492 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 21 December 1915 |
| NLB/52/574 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Oliver Joseph Lodge, FRS | 18 January 1916 |
| NLB/54/577 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 25 June 1917 |
| NLB/53/541 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to [Mrs. Ramsay] | 25 October 1916 |
| NLB/54/223 | Copy letter from Joseph John Thomson, President of the Royal Society; to Professor [William Henry] Young, FRS | 7 March 1917 |
| NLB/52/539 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 10 January 1916 |
| NLB/53/203a | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to Lady Ramsay | 25 May 1916 |
| NLB/52/757 | Copy letter from Joseph John Thomson, President of the Royal Society; to Lady Markham, Wife of Sir Clements Robert Markham | 21 February 1916 |
| NLB/59/563 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 19 October 1920 |
| NLB/58/362 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 26 April 1920 |
| NLB/52/506 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 4 January 1916 |
| NLB/55/360 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society and FRS | 09 March 1918 |
| NLB/54/120 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 13 February 1917 |
| NLB/54/109 | Copy letter from Joseph John Thomson, President of the Royal Society; to Mrs Reid, [Wife of Mr. Clement Reid, FRS] | 6 February 1917 |
| NLB/54/105 | Copy letter from Joseph John Thomson, President of the Royal Society; to Mrs [Pusima] Meldola | 8 February 1917 |
| NLB/53/542 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to [Mrs. Keith Lucas] | 25 October 1916 |
| NLB/53/567 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to Mrs. Gay, The Manor House, Wickmere, Norwich | 30 October 1916 |
| RR/22/81 | Referee's report by Joseph John Thomson, on a paper 'Ionisation potentials of mercury, cadmium, and zinc, and the single- and many-lined spectra of these elements' by John Cunningham McLennan and J P Henderson | June 1915 |
| NLB/53/634 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to The Chairman of the Committee of the Privvy Council responsible for the expenditure of any moneys provided by Parliment for scientific and industrial research | 10 November 1916 |
| NLB/54/599 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to K. B. C. Bennett Esquire | 2 July 1917 |
| NLB/60/49 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 4 December 1920 |
| NLB/54/474 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 21 May 1917 |
| NLB/53/288 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to Mrs. Thompson | 29 June 1916 |
| NLB/54/578 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 25 June 1917 |
| NLB/54/837 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 15 October 1917 |
| NLB/60/50 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 6 December 1920 |
| NLB/55/112 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, O.M., PRS | 07 December 1917 |
| NLB/57/139 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to A Compton Esq; Drayton House, 40 Claricade Gardens, W2 | 29 July 1919 |
| NLB/53/203 | Copy letter from [Joseph John] Thomson, President of the Royal Society and FRS; to Sir William Crookes, O.M., FRS | 25 May 1916 |
| NLB/53/539 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to unknown correspondent | 25 October 1916 |
| NLB/54/649 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Arthur] Schuster, Secretary of the Royal Society | 13 July 1917 |
| NLB/58/476 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 11 May 1920 |
| NLB/54/525 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, President of the Royal Society | 11 June 1917 |
| NLB/54/758 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 12 September 1917 |
| NLB/54/811 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 9 October 1917 |
| NLB/53/47 | Copy letter from [Joseph John] Thomson, President of the Royal Society and FRS; to Mrs. [Jeane] Judd | 23 March 1916 |
| NLB/54/848 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 19 October 1917 |
| NLB/56/127 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 27 November 1918 |
| NLB/59/481 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 6 October 1920 |
| NLB/56/370 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 24 January 1919 |
| RR/10/371 | Referee's report by Joseph John Thomson, on a paper 'On the heating effects of electric currents' by William Henry Preece | 1 July 1890 |
| NLB/56/241 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 20 December 1918 |
| NLB/55/492 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., President of the Royal Society | 26 April 1918 |
| RR/9/89 | Referee's report by George Howard Darwin, on a paper 'On the vibrations of a vortex ring, and the action upon each other of two vortices in a perfect fluid' by Joseph John Thomson | 1882 |
| NLB/56/782 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 23 May 1919 |
| NLB/56/466 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 17 February 1919 |
| NLB/56/391 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 29 January 1919 |
| RR/9/314 | Referee's report by Edward John Routh, on a paper 'On some applications of dynamical principles to physical phenomena' by Joseph John Thomson | 10 February 1885 |
| RR/11/87 | Letter from Joseph John Thomson, on a paper 'On Stokes’s current function' by Ralph Allen Sampson | 10 July 1891 |
| NLB/56/570 | Copy letter from Joseph John Thomson, President of the Royal Society; to the Secretary of His Majesty's Treasury | 13 March 1919 |
| RR/9/263 | Referee's report by Joseph John Thomson, on a paper 'The force function in crystals' by Alfred Einhorn | 12 February 1884 |
| NLB/53/540 | Copy letter from [Sir Joseph John] Thomson, President of the Royal Society and FRS; to unknown correspondent | 25 October 1916 |
| RR/11/88 | Letter from Joseph John Thomson, on a paper 'On Stokes’s current function' by Ralph Allen Sampson | 24 August 1891 |
| RR/9/326 | Referee's report by Joseph John Thomson, on a paper 'On the sympathetic vibrations of jets' by Chichester A Bell | 6 July 1886 |
| MS/929/1/216 | Letter from [Joseph John] Thomson, FRS, Golmleigh, West Road, Cambridge, to James Mackenzie Davidson | 19 February 1918 |
| NLB/53/628 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 10 November 1916 |
| NLB/57/304 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr John Horne, FRS | 11 October 1919 |
| RR/9/315 | Referee's report by William Thomson, Lord Kelvin, on a paper 'On some applications of dynamical principles to physical phenomena' by Joseph John Thomson | 3 April 1885 |
| RR/13/197 | Referee's report by Joseph John Thomson, on a paper 'On the relation between magnetic stress and magnetic deformation in nickel' by E Taylor Jones | 8 February 1897 |
| NLB/57/484 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Richard [Tetley] Glazebrook, FRS | 14 November 1919 |
| NLB/56/637 | Copy letter from Joseph John Thomson, President of the Royal Society; to Sir Sidney [Robert] Greville | 3 April 1919 |
| NLB/56/777 | Copy letter from Joseph [John] Thomson, President of the Royal Society; to Sir Sidney [Robert] Greville | 22 May 1919 |
| RR/10/96 | Referee's report by Herbert McLeod, on the Bakerian Lecture 'On the dissociation of some gases by the electric discharge' by Joseph John Thomson | 24 June 1887 |
| NLB/56/790 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 26 May 1919 |
| RR/10/55 | Referee's report by Joseph John Thomson, on a paper 'On ellipsoidal current-sheets' by Horace Lamb | 29 March 1887 |
| NLB/58/675 | Copy letter from Joseph John Thomson, President of the Royal Society; to Flight-Commander Greg; South Acre, Cambridge | 4 June 1920 |
| NLB/58/824 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 23 June 1920 |
| MS/929/1/215 | Letter from [Joseph John] Thomson, FRS, Golmleigh, West Road, Cambridge, to James Mackenzie Davidson | 23 November 1913 |
| NLB/58/933 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 6 July 1920 |
| NLB/59/277 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 25 August 1920 |
| NLB/68/159 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Joseph John] Thomson, OM, FRS | 21 May 1925 |
| RR/13/47 | Referee's report by Joseph John Thomson, on a paper 'On the capacity and residual charge dielectrics as affected by temperature and time' by John Hopkinson and E Wilson | 4 January 1897 |
| NLB/55/231 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 28 January 1918 |
| NLB/59/272 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 18 August 1920 |
| NLB/59/898 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 27 November 1920 |
| RR/10/305 | Referee's report by Joseph John Thomson, on a paper 'On the magnetic action of displacement-currents in a dielectric' by Silvanus Phillips Thompson | 7 March 1889 |
| NLB/58/731 | Copy letter from [Edwin Deller, Assistant Secretary of the Royal Society]; to Sir Joseph John Thomson, President of the Royal Society | 12 June 1920 |
| NLB/58/277 | Copy letter from Sir Arthur Schuster, FRS; to Sir Joseph [John] Thomson, President of the Royal Society | 14 April 1920 |
| NLB/58/254 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 12 April 1920 |
| NLB/58/162 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 22 March 1920 |
| RR/11/127 | Referee's report by Joseph John Thomson, on a paper 'On the collision of elastic bodies' by Samuel Hawksley Burbury | 13 February 1892 |
| RR/11/52 | Referee's report by Joseph John Thomson, on a paper 'On the forces, stresses, and fluxes of energy in the electromagnetic field' by Oliver Heaviside | 24 October 1891 |
| NLB/63/247 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to The Secretary, Department of Scientific and Industrial Research | 25 July 1922 |
| RR/10/92 | Referee's report by Edward John Routh, on a paper 'Some applications of dynamical principles to physical phenomena.—Part II' by Joseph John Thomson | 15 April 1887 |
| NLB/58/909 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 2 July 1920 |
| NLB/55/759 | Copy letter from [Dr.] Arthur Schuster, Secretary of the Royal Society; to [Joseph John] Thomson, O.M., PRS | 06 September 1918 |
| NLB/57/859 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to CF Gifford Esq; Solicitor's Department, HM Treasury, Storey's Gate, SW 1 | 25 February 1920 |
| NLB/57/140 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to SS Buckman Esq. | 29 July 1919 |
| NLB/58/674 | Copy letter from Joseph John Thomson, President of the Royal Society; to Flight-Commander Greg; South Acre, Cambridge | 4 June 1920 |
| NLB/57/562 | Copy letter from Sir Joseph John Thomson, President of the Royal Society; to the Manager, Lloyds Bank | 5 December 1919 |
| NLB/58/735 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 14 June 1920 |
| NLB/57/459 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Faraday Society | 11 November 1919 |
| NLB/60/501 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 17 February 1921 |
| RR/12/227 | Referee's report by Joseph John Thomson, on a paper 'On some phenomena in vacuum-tubes' by David Salomons | 4 February 1894 |
| NLB/58/804 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 21 June 1920 |
| NLB/57/585 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, Institution of Naval Architecture | 9 December 1919 |
| NLB/55/392 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 19 March 1918 |
| NLB/59/684 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 2 November 1920 |
| NLB/59/718 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 5 November 1920 |
| NLB/59/599 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 23 October 1920 |
| NLB/59/868 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 24 November 1920 |
| NLB/59/129 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 19 July 1920 |
| NLB/59/113 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 17 July 1920 |
| NLB/59/345 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 22 September 1920 |
| NLB/59/229 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 28 July 1920 |
| NLB/59/340 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 22 September 1920 |
| NLB/57/17 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to W [Walter] Alison Phillips Esq | 2 July 1919 |
| NLB/59/243 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 30 July 1920 |
| NLB/59/585 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 22 October 1920 |
| NLB/60/666 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 11 March 1921 |
| NLB/57/452 | Copy letter from Sir Arthur Schuster, FRS, Secretary of the Royal Society; to JH [Sir James Hopwood] Jeans, FRS | 6 November 1919 |
| RR/13/204 | Referee's report by Joseph John Thomson, on a paper 'Electrification of air, of vapour of water, and of other gases' by William Thomson, Magnus Maclean and Alexander Galt | 1 November 1897 |
| NLB/60/115 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir [Joseph John] Thomson, FRS | 10 November 1920 |
| NLB/59/836 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 19 November 1920 |
| RR/14/280 | Referee's report by Joseph John Thomson, on a paper 'Impact with a liquid surface studied by the aid of instantaneous photography. Paper II' by Arthur Mason Worthington and R S Cole | nd [May 1899] |
| NLB/60/499 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 16 February 1921 |
| NLB/60/628 | Copy letter from [Joseph John] Thomson, FRS; to Dr. P. Giles, Vice Chancellor of the University of Cambridge | 3 March 1921 |
| NLB/60/205 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 22 December 1920 |
| RR/17/364 | Referee's report by Joseph John Thomson, on a paper 'The effect of hydrogen on the discharge of negative electricity from hot platinum' by Harold Albert Wilson | 16 March 1908 |
| NLB/60/711 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS; Trinity Lodge, Cambridge | 18 March 1921 |
| NLB/60/638 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 8 March 1921 |
| NLB/57/378 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr S [Sydney] Chapman, FRS | 29 October 1919 |
| NLB/60/147 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 15 December 1920 |
| NLB/57/385 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, The Admiralty | 29 October 1919 |
| RR/14/191 | Referee's report by Joseph John Thomson, on a paper 'The piscian stars' by Joseph Norman Lockyer | 29 December 1899 |
| RR/14/240 | Referee's report by Joseph John Thomson, on a paper 'On the least potential difference required to produce discharge through various gases' by Robert John Strutt, 4th Baron Rayleigh | 21 October 1899 |
| NLB/55/525 | Copy letter from [Joseph John] Thomson, President of the Royal Society; to The Hon. Sir Charles Parsons, K.C.B., FRS | 16 May 1918 |
| RR/9/191 | Referee's report by William Davidson Niven, on a paper 'On the determination of the number of electrostatic units in the electromagnetic unit of electricity' by Joseph John Thomson | 2 October 1882 |
| RR/10/142 | Referee's report by Joseph John Thomson, on a paper 'On the mechanical conditions of a swarm of meteorites, and on theories of cosmogony' by George Howard Darwin | 28 March 1888 |
| RR/15/111 | Referee's report by Joseph John Thomson, on a papet 'The conductivity of gases under the becquerel rays' by Robert John Strutt, Lord Rayleigh | January 1901 |
| NLB/57/600 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to WM How, Esq, Bailiff & Bursar of Schrewsbury [sic] School | 15 December 1919 |
| NLB/57/141 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to FN Williams Esq | 29 July 1919 |
| NLB/55/630 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Mrs. Sollas | 02 July 1918 |
| NLB/57/598 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr SF [Sidney Frederic] Harmer, FRS | 13 December 1919 |
| NLB/57/782 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, Conjoint Board of Scientific Societies | 3 February 1920 |
| NLB/57/136 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Ronald Ross, FRS, KCB | 29 July 1919 |
| NLB/57/163 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Arthur Latham, Esq, MA MD | 31 July 1919 |
| NLB/57/33 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, PRS, OM | 7 July 1919 |
| NLB/57/528 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society, OM | 24 November 1919 |
| NLB/60/651 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, FRS | 9 March 1921 |
| NLB/57/434 | Copy letter from Sir Arthur Schuster, FRS, Secretary of the Royal Society; to Professor WM [William Maddock] Bayliss, FRS | 6 November 1919 |
| NLB/57/382 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, Air Ministry, Kingsway, WC2 | 29 October 1919 |
| NLB/57/388 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, Department of Scientific and Industrial Research, Great George Street, SW1 | 30 October 1919 |
| NLB/57/604 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Conjoint Board of Scientific Societies | 15 December 1919 |
| NLB/57/138 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to WR Fearon Esq; Emmanuel College, Cambridge | 29 July 1919 |
| NLB/57/40 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, PRS | 8 July 1919 |
| NLB/57/147 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to GHF [George Henry Falkiner ] Nuttall, FRS | 29 July 1919 |
| NLB/57/124 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Clement Kinloch-Cooke, MP | 26 July 1919 |
| NLB/57/430 | Copy letter from Sir Arthur Schuster, FRS, Secretary of the Royal Society; to Dr Charles Chree, FRS | 6 November 1919 |
| NLB/57/429 | Copy letter from Sir Arthur Schuster, FRS Secretary of the Royal Society; to Major PA [Percy Alexander] MacMahon, FRS | 6 November 1919 |
| NLB/57/432 | Copy letter from Sir Arthur Schuster, FRS, Secretary of the Royal Society; to Professor PF [Percy Faraday] Frankland, FRS | 6 November 1919 |
| NLB/57/642 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, HM [His Majesty's] Treasury | 2 January [1920] |
| NLB/57/383 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor BD [Bertram Dillon] Steele, FRS | 29 October 1919 |
| NLB/57/346 | Copy letter from Joseph John Thomson, OM, President of the Royal Society; to the Agent, the Bank of England; Western Branch, Burlington Gardens W | 23 October 1919 |
| NLB/55/589 | Copy letter from [Joseph John] Thomson, President of the Royal Society; to Sir William Crookes, FRS | 21 June 1918 |
| NLB/57/389 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to TE Pickles Esq, Publications Department; HM [His Majesty's] Stationery Office, Westminster, SW 1 | 30 October 1919 |
| NLB/57/460 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to CT [Charles Thomas] Heycock Esq, FRS | 11 November 1919 |
| NLB/57/438 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society, OM | 7 November 1919 |
| NLB/55/543 | Copy letter from Miss Maud K. Jukes, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 25 May 1918 |
| NLB/57/692 | Copy letter from Sir David Prain, Treasurer of the Royal Society; to Messrs Coutts & Co | January 1920 |
| NLB/57/527 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society, OM | 25 November 1919 |
| NLB/57/539 | Copy letter from [Sir Alfred Bray Kempe], Treasurer of the Royal Society; to Sir Richard [Tetley] Glazebrook, FRS | 29 November 1919 |
| NLB/55/544 | Copy letter from Miss Maud K. Jukes, Assistant Secretary of the Royal Society; to Professor [Arthur] Schuster, Secretary of the Royal Society and FRS | 25 May 1918 |
| NLB/55/697 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 23 July 1918 |
| NLB/57/576 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Institute of Mechanical Engineers | 9 December 1919 |
| NLB/57/606 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Ernest Rutherford, FRS | 15 December 1919 |
| NLB/57/605 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Clerk, Trustees of the London Parochial Charities | 15 December 1919 |
| NLB/57/615 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, President of the Royal Society, OM | 15 December 1919 |
| NLB/57/624 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Mrs Ballie Reynolds; 1 Palace Gardens Terrace, Kensington, W 8 | 17 December 1919 |
| NLB/57/678 | Copy letter from TE James, Clerk of the Royal Society; to the Secretary of the Midland Railway Co. Derby | 12 January 1920 |
| NLB/55/767 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, PRS | 14 September 1918 |
| NLB/57/724 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Amalgamated Press Ltd; the Fleetway House, Farringdon Street, EC 4 | 20 January 1920 |
| NLB/57/749 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to the Vice Chancellor, Cambridge University [Dr Peter Giles] | 30 January 1920 |
| NLB/57/721 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to GH Thomson Esq.; Armstrong College, Newcastle-upon-Tyne | 28 January 1920 |
| NLB/57/601 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Richard Threlfall, FRS | 15 December 1919 |
| NLB/57/593 | Copy letter from Sir James Hopwood Jeans, Secretary of the Royal Society; to the Director [Sir Joseph Ernest Petavel, FRS, KBE], the National Physical Laboratory | 12 December 1919 |
| NLB/57/607 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Air Ministry | 15 December 1919 |
| NLB/57/602 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Admiral Sir Henry [Bradwardine] Jackson, FRS, GCBE, ECVO | 13 December 1919 |
| NLB/57/860 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Miss ME Seaton; 29 Woolstone Road, Forest Hill, SE 23 | 25 February 1920 |
| NLB/55/590 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 21 June 1918 |
| NLB/57/882 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to the News Editor, the Times | 26 February 1920 |
| NLB/57/837 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to the Secretary, HM [His Majesty's] Treasury | 19 February 1920 |
| NLB/55/770 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, O.M., PRS | 17 September 1918 |
| NLB/57/461 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, International Research Council | 11 November 1919 |
| NLB/57/884 | Copy letter from Sir Joseph John Thomson, President of the Royal Society; to the Editor of the Times [Henry Wickham Steed] | 26 February 1920 |
| NLB/55/909 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir [John Joseph] Thomson, PRS | 16 October 1918 |
| NLB/55 | New Letter Book volume 55, copy letters sent from Royal Society administration | 5 November 1917-1 November 1918 |
| NLB/57/862 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Dr JN Pring; the University, Manchester | 25 February 1920 |
| NLB/57/384 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor AS [Arthur Stewart] Eve, FRS, CBE | 29 October 1919 |
| NLB/57/453 | Copy letter from Sir Arthur Schuster, FRS, Secretary of the Royal Society; to Professor JB [Sir John Bretland] Farmer, FRS | 6 November 1919 |
| NLB/63/83 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Sir Joseph Thomson, O.M., FRS | 22 June 1922 |
| NLB/66/716 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Thomson, FRS | 25 June 1924 |
| NLB/57/137 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, the Liverpool Geological Society | 29 July 1919 |
| 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/57/97 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society, OM | 23 July 1919 |
| NLB/57/122 | Copy letter from Sir Joseph John Thomson, President of the Royal Society; to the Secretary, Research Department | 25 July 1919 |
| NLB/57/238 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir David Prain, FRS, CMG | 26 September 1919 |
| NLB/57/507 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to R Sweeting Esq; 409 Chamber of Commerce Building, Rochester, NW | 20 November 1919 |
| NLB/57/861 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Professor WH [Sir William Henry] Bragg, FRS, OBE | 25 February 1920 |
| NLB/57/454 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Miss Annie Foster; Pell View Wodplumpton, nr [near] Preston, Lancs [Lancashire] | 11 November 1919 |
| NLB/57/431 | Copy letter from Sir Arthur Schuster, Secretary of the Royal Society; to the Keeper HM [His Majesty's] Privy Purse [Frederick Edward Grey Ponsonby, 1st Baron Sysonby, GCB, GCVO, PC] | 6 November 1919 |
| NLB/57/776 | Copy letter from unknown correspondent; to Egerton C Grey, Esq. D.Sc. | 2 February 1920 |
| NLB/57/741 | Copy letter from Professor [Sir] William Abbott Herdman, Foreign Secretary of the Royal Society; to Professor Y Delage | 28 January 1920 |
| NLB/57/753 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to the Viscount Grey, FRS, KG [Edward Grey, 1st Viscount Grey of Fallodon, KG, PC, DL, FZS] | 30 January 1920 |
| NLB/57/747 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to the Viscount Windsor [Ivor Windsor-Clive, 2nd Earl of Plymouth] | 30 January 1920 |
| NLB/57/339 | Copy letter from WE Smith, Acting Chairman of the Finance Committee of the Royal Society; to the Agent, Bank of England | 21 October 1919 |
| MS/928/6/3/9 | Letter from Joseph John Thomson, Trinity Lodge, Cambridge, to Andrew Russell Forsyth | 7 February 1939 |
| RR/14/238 | Referee's report by Joseph John Thomson, on a paper 'On the nature of electrocapillary phenomena.—I. Their relation to the potential differences between solutions' by Samuel Walter Johnson Smith | 3 February 1899 |
| NLB/65/159 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Lord Rayleigh [Robert John Strutt], FRS | 28 August 1923 |
| NLB/63/237 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Vernon Herbert] Blackman, FRS | 20 July 1922 |
| NLB/65/11 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir [Joseph John] Thomson, FRS | 12 July 1923 |
| NLB/68/849 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph Thomson, CM, FRS | 12 November 1925 |
| NLB/70/60 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, OM, FRS | 11 December 1926 |
| NLB/71/184 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to C. F. Pond Esq., University Press, Cambridge | 3 February 1928 |
| RR/9/88 | Referee's report by William Thomson, Lord Kelvin, on a paper 'On the vibrations of a vortex ring, and the action upon each other of two vortices in a perfect fluid' by Joseph John Thomson | 21 March 1882 |
| NLB/59/302 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 8 September 1920 |
| NLB/66/717 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Robert John Strutt] Lord Rayleigh, FRS | 25 June 1924 |
| NLB/66/686 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Robert John Strutt] Lord Rayleigh, FRS | 19 June 1924 |
| NLB/3/376 | Copy letter from Herbert Rix, to [John William Strutt] Lord Rayleigh, [Royal Society] | 24 May 1889 |
| NLB/3/730 | Copy letter from Herbert Rix, to Professor Joseph John Thomson, Fellow of the Royal Society | 26 September 1889 |
| NLB/10/257 | Copy letter from Herbert Rix, to [the Engraver of the Mint] | 1 November 1894 |
| NLB/10/624 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt], Secretary, Royal Society | 4 January 1895 |
| NLB/9/774 | Copy letter from Herbert Rix, to Professor Oliver Joseph Lodge, Fellow of the Royal Society | 11 July 1894 |
| RR/15/275 | Referee's report by Joseph John Thomson, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | April 1901 |
| NLB/17/485 | Copy letter from Arthur William Rucker, to the members of the National Physical Laboratory Committee as nominated | 4 November 1898 |
| NLB/20/622 | Copy letter from Robert William Frederick Harrison, to Professor John Cunningham McLennan, Toronto, [Fellow of the Royal Society] | 1 June 1900 |
| NLB/20/694 | Copy letter from Robert William Frederick Harrison, to the Under Secretary of State for Foreign Affairs | 19 June 1900 |
| NLB/44/412 | Copy letter from Joseph Larmor to Professor Sir J [Joseph] J [John] Thomson FRS | 7 July 1911 |
| NLB/54/231 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 12 March 1917 |
| RR/21/121 | Referee's report by Joseph John Thomson, on a paper 'The transmission of electric waves around the earth's surface' by Hector Munro Macdonald | [January 1914] |
| NLB/54/333 | Copy letter from [Theodore] E. James, Clerk of the Royal Society; to Joseph John Thomson, President of the Royal Society | 13 April 1917 |
| RR/14/57 | Referee's report by Joseph John Thomson, on a paper 'Researches in vortex motion.—Part III. On spiral or gyrostatic vortex aggregates' by William Mitchinson Hicks | 16 March 1898 |
| NLB/56 | New Letter Book volume 56, copy letters sent from Royal Society administration | 1 November 1918-27 June 1919 |
| NLB/56/651 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 7 April 1919 |
| NLB/56/677 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 11 April 1919 |
| NLB/53/53 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, O.M., PRS | 27 March 1916 |
| RR/9/320 | Referee's report by Joseph John Thomson, on a paper 'The influence of stress and strain on the physical properties of matter' by Herbert Tomlinson | 21 September 1885 |
| NLB/48 | New Letter Book volume 48, copy letters sent from Royal Society administration | 25 April 1913-25 October 1913 |
| RR/12/138 | Referee's report by Joseph John Thomson, on a paper 'Propagation of magnetization of iron as affected by the electric currents in the iron' by John Hopkinson and E Wilson | 30 May 1894 |
| NLB/59/208 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 26 July 1920 |
| NLB/59/333 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society; Trinity College, Cambridge | 21 September 1920 |
| RR/12/229 | Second referee's report by Joseph John Thomson, on a paper 'On some phenomena in vacuum-tubes' by David Salomons | 12 June 1894 |
| NLB/57/79 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to T J Rees, Esq. BA, Director of Education, County Borough of Swansea | 15 July 1919 |
| NLB/57/146 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 28 July 1919 |
| NLB/57/597 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Sir Arthur] Schuster, FRS | 13 December 1919 |
| NLB/57/510 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Richard Glazebrook, FRS, CB | 20 November 1919 |
| NLB/57/667 | Copy letter from Joseph John Thomson, President of the Royal Society; to Sir Godfrey Thomas Bart | 8 January 1920 |
| NLB/57/626 | Copy letter from AH White, Assistant Librarian of the Royal Society; to Sir Joseph John Thomson, President of the Royal Society | 18 December 1919 |
| NLB/57/656 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to Sir David Prain, Treasurer of the Royal Society, FRS, IMS, CMG | 7 January 1920 |
| NLB/57/538 | Copy letter from Sir Joseph John Thomson, President of the Royal Society; to His Excellency, Sr Administrator, Isle of Principe, West Africa [São Tomé] | 24 November 1919 |
| RR/9/190 | Referee's report by William Davidson Niven, on a paper 'On the determination of the number of electrostatic units in the electromagnetic unit of electricity' by Joseph John Thomson | 18 September 1883 |
| NLB/57/59 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary, Royal Academy of Arts, [Sir Walter Rangeley Maitland Lamb, KCVO] | 11 July 1919 |
| NLB/57/867 | Copy letter from unknown correspondent, [Secretary of the Royal Society]; to HG Maurice Esq CB | 26 February 1920 |
| NLB/57/701 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society [?]; to Admiral Sir Henry B [Braderwine] Jackson, FRS, GCB | 20 January 1920 |
| MM/9/22 | Letter from JJ Thomson, Conway, to AW Porter | 26 March 1896 |
| NLB/12/897 | Copy letter from Robert William Frederick Harrison, to Richard Tetley Glazebrook, Fellow of the Royal Society | 23 May 1896 |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| RR/10/48 | Referee's report by Joseph John Thomson, on a paper 'Some anomalies in the winds of Northern India, and their relation to the distribution of barometric pressure' by S A Hill | 30 April 1887 |
| NLB/53/63 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph Thomson, O.M., PRS | 31 March 1916 |
| NLB/53/370 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to The Secretary, Reconstruction Committee, 6a Dean's Yard, S.W. | 24 July 1916 |
| RR/10/215 | Referee's report by Joseph John Thomson, on a paper 'On the electromotive properties of the leaf of Dionæa in the excited and unexcited states.—Second paper' by John Scott Burdon-Sanderson | 20 July 1888 |
| 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/58 | New Letter Book volume 58, copy letters sent from Royal Society administration | 28 February 1920-9 July 1920 |
| NLB/59 | New Letter Book volume 59, copy letters sent from Royal Society administration | 9 July 1920-2 December 1920 |
| NLB/60 | New Letter Book volume 60, copy letters sent from Royal Society administration | 2 December 1920-26 April 1921 |
| NLB/57/245 | Copy letter from Sir Alfred Bray Kempe, FRS, Treasurer of the Royal Society; to the Agent, the Bank of England, Western Branch | 26 September 1919 |
| NLB/57/347 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph John Thomson, OM, President of the Royal Society | 24 October 1919 |
| NLB/57/541 | Copy letter from Sir Joseph John Thomson, President of the Royal Society; to his Excellency, the Brazilian Ambassador [Fontoura Xavier] | 29 November 1919 |
| NLB/57/799 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to the Secretary HM [His Majesty's] Treasury | 9 February 1920 |
| NLB/64/712 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Robert John Strutt] Lord Rayleigh | 7 June 1923 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| RR/9/189 | Referee's report by William Thomson, Lord Kelvin, on a paper 'On the determination of the number of electrostatic units in the electromagnetic unit of electricity' by Joseph John Thomson | 14 August 1883 |
| RR/9/301 | Referee's report by Joseph John Thomson, on a paper 'On the connexion between electric current and the electric and magnetic inductions in the surrounding field' by John Henry Poynting | 17 July 1885 |
| NLB/20/162 | Copy letter from Michael Foster and Arthur William Rucker, to Sir Richard Strachey, Fellow of the Royal Society, Chairman of the Meteorological Council | 19 February 1900 |
| RR/10/95 | Second referee's report by William Thomson, 1st Baron Kelvin, on a paper 'Some applications of dynamical principles to physical phenomena.—Part II' by Joseph John Thomson | 17 June 1887 |
| RR/12/90 | Referee's report by Joseph John Thomson, on a paper 'On the ascent of sap' by Henry Horatio Dixon and John Joly | 20 February 1895 |
| RR/14/3 | Letter from Joseph John Thomson, to George Howard Darwin, regarding a paper [attributed] 'Tables for the solution of the equation d2y/dx2 + 1/x · dy/dx - (1 + n2/x2) y = 0' by W Steadman Aldis | 3 August 1898 |
| RR/14/41 | Referee's report by Joseph John Thomson, on a paper 'An extension of Maxwell's electro-magnetic theory of light to include dispersion, metallic reflection, and allied phenomena' by Edwin Edser | 7 March 1898 |
| MC/13/57 | Letter from J J [Joseph John] Thomson, Trinity College Cambridge, to [Walter] White, [Assistant Secretary of the Royal Society | 10 June 1884 |
| MC/13 | Volume 13 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1884 |
| AP/75/12 | Unpublished paper, 'On the theory of refraction in gases' by George W [Walker] Walker | 1903 |
| AP/65/2 | Unpublished paper, 'On aeolotropic [anisotropic] elastic solids' by C [Charles] Chree | 1888 |
| RR/12/388 | Third referee's report by Joseph John Thomson, on a paper 'On some phenomena in vacuum-tubes, No. 2 and 3' by David Salomons | 17 December 1894 |
| AP/73/7 | Unpublished paper, 'On a new method of determining the vapour pressures of solutions' by E B H [Edward Bruce Herschel] Wade | 1897 |
| RR/13/55 | Referee's report by Joseph John Thomson, on a paper 'The measurement of high potential difference' by H C Leake, R Leventhorpe and C S Whitehead | 9 January 1896 |
| RR/29/41 | Referee's report by Joseph John Thomson, on a paper 'Some experiments on the proportionality of mass and weight' by Harold H Potter | August 1923 |
| PP/7/22/1 | Manuscript, 'On the formation of vortex rings by drops falling into liquids, and some allied phenomena' by Joseph John Thomson and Hugh Frank Newall | 1885 |
| PP/7/2 | Paper, 'The vortex ring theory of gases. On the law of the distribution of energy among the molecules' by J J [Joseph John] Thomson | 1885 |
| PP/7/22 | Paper, 'On the formation of vortex rings by drops falling into liquids, and some allied phenomena' by Joseph John Thomson and Hugh Frank Newall | 1885 |
| PP/7/22/2 | Figures, a drop of ink falling into water by Joseph John Thomson and Hugh Frank Newall | 1885 |
| PP/8/23/1 | Manuscript, 'Some experiments on the production of ozone' by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/8/23 | Paper, 'Some experiments on the production of ozone' by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/8/22/2 | Figures, experimental equipment by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/10/52 | Paper, 'On the rate at which electricity leaks through liquids which are bad conductors of electricity' by J J [Joseph John] Thomson and H F [Hugh Frank] Newall | 1887 |
| PP/10/52/1 | Manuscript, 'On the rate at which electricity leaks through liquids which are bad conductors of electricity' by J J [Joseph John] Thomson and H F [Hugh Frank] Newall | 1887 |
| PP/11/2 | Paper, 'Conduction of heat in liquids' by C [Charles] Chree | 1887 |
| PP/10/52/2 | Diagrams, experimental equipment and results by J J [Joseph John] Thomson and H F [Hugh Frank] Newall | 1887 |
| PP/8/22 | Paper, 'On an effect produced by the passage of an electric discharge through pure nitrogen' by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/14/5 | Paper, 'On the magnetic rotation of the plane of polarisation of light in doubly refracting bodies' by A W Ward | 1889 |
| PP/12/12 | Paper, 'On the effect of occluded gases on the thermo-electric properties of bodies, and on their resistances; also on the thermo-electric and other properties of graphite and carbon' by James Monckman | 1888 |
| PP/14/1 | Paper, 'Note on the effect produced by conductors in the neighbourhood of a wire on the rate of propagation of electrical disturbances along it, with a determination of this rate' by J J [Joseph John] Thomson | 1889 |
| PP/14/13 | Paper, 'The specific resistance of sulphur and other properties' by James Monckman | 1888 |
| PP/18/11 | Paper, 'On a compensated air thermometer' by Hugh Longbourne Callendar | 1891 |
| PP/17/24 | Paper, 'On the effect of temperature upon the refractive index of certain liquids' by W Cassie | 1891 |
| PP/23/24 | Paper, 'Thermo-electric properties of salt solutions' by George Frederick Emery | 1894 |
| PP/21/5/1 | Manuscript, 'The electrolysis of steam' by Joseph John Thomson | 1893 |
| PP/20/9/1 | Manuscript, 'On the potential difference required to produce a spark between two parallel plates in air at different pressures' by J B Peace | 1892 |
| 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 |
| PP/21/5 | Paper, 'The electrolysis of steam' by Joseph John Thomson | 1893 |
| PP/20/9 | Paper, 'On the potential difference required to produce a spark between two parallel plates in air at different pressures' by J B Peace | 1892 |
| PP/21/5/2 | Diagrams, experimental equipment by Joseph John Thomson | 1893 |
| PP/14/36/1 | Manuscript, 'On the velocity of transmission through sea-water of disturbances of large amplitude caused by explosions' by Richard Threlfall and John Frederick Adair | 1889 |
| PP/14/36 | Paper, 'On the velocity of transmission through sea-water of disturbances of large amplitude caused by explosions' by Richard Threlfall and John Frederick Adair | 1889 |
| RR/12/20 | Referee's report by Joseph John Thomson, on a paper 'The variation of molecular surface-energy with temperature' by William Ramsay and John Shields | 28 April 1893 |
| RR/15/277 | Second referee's report by Joseph John Thomson, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | 12 December 1901 |
| RR/10/93 | Referee's report by William Thomson, 1st Baron Kelvin, on a paper 'Some applications of dynamical principles to physical phenomena.—Part II' by Joseph John Thomson | 6 May 1887 |
| RR/10/94 | Letter from Joseph John Thomson, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'Some applications of dynamical principles to physical phenomena.—Part II' by Joseph John Thomson | 8 June 1887 |
| RR/11/8 | Referee's report by Joseph John Thomson, on a paper 'On the reflection and refraction of light at the surface of a magnetized medium' by Alfred Barnard Basset | 18 February 1891 |
| RR/13/58 | Letter from Joseph John Thomson, on a paper 'The measurement of high potential difference' by H C Leake, R Leventhorpe and C S Whitehead to John Ambrose Fleming | 16 February 1896 |
| RR/13/201 | Referee's report by Joseph John Thomson, on a paper 'On the calculation of the coefficient of mutual induction of a circle and a coaxial helix, and of the electromagnetic force between a helical current and a uniform coaxial circular cylindrical current sheet' by John Viriamu Jones | 10 February 1898 |
| PP/24/23/1 | Manuscript, 'The electric strength of mixtures of nitrogen and hydrogen' by P G Fawcett | 1894 |
| PP/23/24/1 | Manuscript, 'Thermo-electric properties of salt solutions' by George Frederick Emery | 1894 |
| PP/24/23 | Paper, 'The electric strength of mixtures of nitrogen and hydrogen' by P G Fawcett | 1894 |
| PP/8/22/1 | Manuscript, 'On an effect produced by the passage of an electric discharge through pure nitrogen' by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/8/23/2 | Diagram, experimental equipment by J J [Joseph John] Thomson and R [Richard] Threlfall | 1886 |
| PP/12/12/1 | Manuscript, 'On the effect of occluded gases on the thermo-electric properties of bodies, and on their resistances; also on the thermo-electric and other properties of graphite and carbon' by James Monckman | 1888 |
| PP/17/5 | Paper, 'On the rate of propagation of the luminous discharge of electricity through a rarefied gas' by J J [Joseph John] Thomson | [1890-1891] |
| RR/13/152 | Referee's report by Joseph John Thomson, on a paper 'Experimental proof of van 't Hoff's law' by Meyer Wildermann | 6 July 1896 |
| MC/20 | Volume 20 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1905 |
| MC/19/795 | Letter from [Joseph John] Thomson, Cavendish Laboratory, Cambridge, to the Royal Society | 13 December 1904 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |
| MC/20/427 | Letter from [Joseph John] Thomson, Cavendish Laboratory, Cambridge, to the Royal Society | 20 January 1905 |