| RefNo | Title | Date |
| EC/1910/01 | Barcroft, Sir Joseph: certificate of election to the Royal Society | |
| NLB/64/697 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, K.C.M.G FRS | 4 June 1923 |
| MDA/A/4/34 | Letter from Joseph Barcroft, Agricultural Research Council, to Henry Dale, President of the Royal Society | 20 January 1944 |
| MDA/A/4/35 | Letter from Joseph Barcroft, Unit of Animal Physiology, Cambridge, to Joseph Barcroft | 18 January 1944 |
| NLB/67/47 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Charles [Scott] Sherrington, OM. President of the Royal Society | 9 October 1924 |
| RR/21/67 | Referee's report by Joseph Barcroft, on a paper 'Further observations on the changes in the breathing and the blood at various high altitudes' by Mabel Purefoy Fitzgerald | [June 1914] |
| MS/603/1/55 | Letter from J [Joseph] Barcroft, 13 Grange Road, Cambridge, to [Joseph] Larmor | 10 November [post-1912] |
| NLB/44/201 | Copy letter from Joseph Larmor to [Joseph] Barcroft | 24 May 1911 |
| NLB/44/388 | Copy letter from Robert William Frederick Harrison to J [Joseph] Barcroft FRS | 3 July 1911 |
| NLB/48/753 | Copy letter from Robert William Frederick Harrison, to [Joseph] Barcroft, Fellow of the Royal Society | 7 October 1913 |
| NLB/45/172 | Copy letter from Robert William Frederick Harrison to J [Joseph] Barcroft FRS | 10 January 1912 |
| NLB/45/153 | Copy letter from Robert William Frederick Harrison to J [Joseph] Barcroft FRS | 8 January 1912 |
| NLB/52/133 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Joseph Barcroft FRS | 18 September 1915 |
| NLB/60/292 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 13 January 1921 |
| RR/22/12 | Referee's report by Leonard Erskine Hill, on a paper 'Effects of functional activity in striated muscle and the submaxillary gland' by Joseph Barcroft and Toyojiro Kato | September 1915 |
| RR/20/39 | Referee's report by Joseph Barcroft, on a paper 'The changes in the breathing and the blood at various high altitudes' by M P Fitzgerald | January 1913 |
| RR/32/84 | Referee's report by Joseph Barcroft, on a paper 'On cytochrome, a respiratory pigment, common to animals, yeast, and higher plants' by David Keilin | May 1925 |
| NLB/54/556 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph Barcroft Esquire, FRS | 18 June 1917 |
| NLB/53/196 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Joseph Barcroft Esq., FRS | 22 May 1916 |
| RR/47/58 | Referee's report by Joseph Barcroft, on a paper 'The oxygen affinity of chlorocruorin' by Harold Munro Fox | June 1932 |
| NLB/62/888 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 27 May 1922 |
| RR/29/37 | Referee's report by Joseph Barcroft, on a paper 'Observations on the adjustment of the human body to muscular work' by N W MacKeith, Marcus Seymour Pembrey, W R Spurrell, E C Warner and W J Westlake | June 1923 |
| RR/32/65 | Referee's report by Joseph Barcroft, on a paper 'Muscular exercise, lactic acid, and the supply and utilisation of oxygen. Part IX. —Muscular activity and carbohydrate metabolism in the normal individual' by K Furusawa | January 1925 |
| RR/34/13 | Referee's report by Joseph Barcroft, on a paper 'The chemical nature of haemochromogen and its carbon monoxide compound' by R Hill | [November 1926] |
| NLB/66/857 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, K.C.M.G FRS | 29 July 1924 |
| NLB/60/294 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 13 January 1921 |
| NLB/57/63 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Joseph] Barcroft, FRS | 10 July 1919 |
| RR/44/42 | Referee's report by Joseph Barcroft, on a paper 'The relation between the pulmonary and bronchial vascular systems' by J L Berry and Ivan De Burgh Daly | September 1931 |
| RR/43/1 | Referee's report by Joseph Barcroft, on a paper 'The functional activity of the vasomotor nerves to the lungs in the dog' by Ivan De Burgh Daly and V. Von Euler | November 1931 |
| RR/44/43 | Referee's report by Joseph Barcroft, on a paper 'The bronchial vascular system in the dog' by J L Berry, J F Brailsford and Ivan De Burgh Daly | 1931 |
| NLB/57/592 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to J [Joseph] Barcroft Esq. FRS | 12 December 1919 |
| RR/50/126 | Referee's report by Joseph Barcroft, on a paper 'Crystalline chlorocruorin' by Jean Roche and Harold Munro Fox | October 1933 |
| NLB/60/271 | Copy letter from [William Bate Hardy,] Secretary of the Royal Society; to [Joseph] Barcroft Esquire; FRS | 8 January 1921 |
| NLB/55/711 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esq., FRS | 31 July 1918 |
| RR/22/13 | Referee's report by John Scott Haldane, on a paper 'Effects of functional activity in striated muscle and the submaxillary gland' by Joseph Barcroft and Toyojiro Kato | September 1915 |
| RR/46/28 | Referee's report by Otto Rosenheim, on a paper 'Uteroverdin, the green pigment of the dog's placenta' by R Lemberg and Joseph Barcroft | [January 1932] |
| NLB/57/2 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor F [Frederick] G [Gowland] Hopkins, FRS | 27 June 1919 |
| RR/21/20 | Referee's report by Leonard Erskine Hill, on a paper 'Report of the monte rosa expedition of 1911' by Joseph Barcroft, M Camis, C G Mathison, Ff Roberts and J H Ryffel | [January 1914] |
| RR/49/127 | Referee's report by Joseph Barcroft, on a paper 'The blood circulation of animals possessing chlorocruorin' by Harold Munro Fox | [January 1933] |
| RR/50/14 | Referee's report by Joseph Barcroft, on a paper 'The effect of muscular contraction upon the blood flow in the skeletal muscle' by Gleb Anrep, A Blalock and Adli Samaan | October 1933 |
| NLB/64/109 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 1 February 1923 |
| NLB/61/560 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 29 July 1921 |
| RR/52/77 | Referee's report by Joseph Barcroft, on a paper 'The oxygen to iron ratio of oxychlorocruorin and the total quantity of oxygen carried by the pigment in spirographis' by Harold Munro Fox | April 1934 |
| NLB/61/522 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to the Under Secretary of State; Foreign Office | 18 July 1921 |
| NLB/61/508 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Walter Durnford,] the Provost of King's College, Cambridge | 14 July 1921 |
| RR/55/74 | Referee's report by Joseph Barcroft, on a paper 'A comparison of the rate of metabolic activity in the solitary and migratory phases of Locusta migratoria' by Colin Gasking Butler and Jean M Innes | November 1935 |
| NLB/62/876 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 24 May 1922 |
| NLB/63/781 | Copy letter from William Bate Hardy, Secretary of the Royal Society and FRS; to [Joseph] Barcroft Esq., C.B.E., FRS | 14 December 1922 |
| NLB/62/789 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Joseph] Barcroft Esquire, FRS | 6 May 1922 |
| NLB/63/523 | Copy letter from William Bate Hardy, Secretary of the Royal Society and FRS; to The Keeper of H.M. Privy Purse | 02 November 1922 |
| RR/67/149 | Referee's report by Joseph Barcroft, on a paper 'On the function of chlorocruorin' by Rosalie F Ewer and Harold Munro Fox | March 1940 |
| NLB/62 | New Letter Book volume 62, copy letters sent from Royal Society administration | 11 November 1921-10 June 1922 |
| NLB/57/152 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor FG [Frederick Gowland] Hopkins, FRS, Chairman of the Physiology Committee | 30 July 1919 |
| RR/69/175 | Memoradum from J D Griffith Davies, Assistant Secretary of the Royal Society on a paper 'The threshold of audition for short periods of stimulation' by J W Hughes to Joseph Barcroft | 20 December 1945 |
| NLB/63/565 | Copy letter from William Bate Hardy, Secretary of the Royal Society and FRS; to Joseph Barcroft, FRS | 04 November 1922 |
| RR/69/202 | Memorandum from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'Experiments on the inactivation of bacteriophage by radiations, and their bearing on the nature of bacteriophage' by D E Lea and M H Salaman to Joseph Barcroft | 27 August 1945 |
| RR/69/24 | Memorandum from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'The effect of heat-denaturation on the base-binding capacity of beef-muscle press-juice' by J R Bendall to Joseph Barcroft | May 1946 |
| NLB/63/838 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esq, FRS | 05 January 1923 |
| RR/69/143 | Memorandum from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'The innervation and actions of the neurophypophysis; an investigation using the method of remote-control stimulation' by Geoffrey Wingfield Harris to Joseph Barcroft | 2 August 1945 |
| NLB/64/864 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esq. FRS | 4 July 1923 |
| RR/50/15 | Referee's report by Joseph Barcroft, on a paper 'The effect of muscular contraction upon the blood flow in the skeletal muscle, in the diaphragm and in the small intestine' by Gleb Anrep, S Cerqua and Adli Samaan | October 1933 |
| NLB/65/464 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 5 November 1923 |
| NLB/65/300 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Joseph] Barcroft Esq., FRS | 8 October 1923 |
| NLB/65/295 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 8 October 1923 |
| NLB/65/264 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 1 October 1923 |
| NLB/65/420 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Arthur Smith] Woodward, FRS; also sent to Professor [Godfrey Harold] Hardy; [Charles Thomson Rees] Wilson Esq.; [Joseph] Barcroft Esq; Dr [Frederick Frost] Blackman; Sir Frank [Watson] Dyson; [William] Bateson, Esq.; Professor [John Bretland] Farmer; Professor [Frederick Gowland] Hopkins | 30 October 1923 |
| NLB/69/2 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Prof. [Joseph] Barcroft, FRS | 10 December 1925 |
| NLB/66/559 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Joseph] Barcroft, FRS | 30 May 1924 |
| NLB/67/226 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to the Master of Caius [College, Cambridge] | 16 November 1924 |
| NLB/67/168 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esq., FRS | 7 November 1924 |
| NLB/66/565 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. Julian Huxley | 30 May 1924 |
| NLB/66/477 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Joseph] Barcroft Esq., FRS | 16 May 1924 |
| NLB/68/217 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, FRS | 29 May 1925 |
| NLB/69/79 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Prof. [Joseph] Barcroft, FRS | 4 January 1926 |
| NLB/68/148 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 20 May 1925 |
| NLB/66/865 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, K.C.M.G FRS | 1 August 1924 |
| NLB/67/19 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 1 October 1924 |
| RR/64/81 | Referee's report by Joseph Barcroft, on a paper 'Preparation of pure cytochrome c from heart muscle and some of its properties' by David Keilin and E F Hartree | [February 1937] |
| NLB/69/188 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. Joseph Barcroft, C.B.E, FRS | 25 January 1926 |
| NLB/73/21 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Joseph] Barcorft, C.B.E, FRS | 17October 1930 |
| RR/28/75 | Referee's report by Joseph Barcroft, on a paper 'Concerning the influence of atmospheric conditions upon the pulse rate and “oxygen debt” after running' by J Argyll Campbell | [October 1923] |
| CMB/278/3 | Minutes, meeting of the Physiology and Medical Sciences Committee | 25 January 1945 |
| NLB/42/433 | Copy letter from Robert William Frederick Harrison to J [Joseph] Barcroft, FRS [Fellow of the Royal Society] | 13 June 1910 |
| RR/22/125 | Referee's report by Joseph Barcroft, on a paper 'The effect of the depth of pulmonary ventilation on the oxygen in the venous blood of man' by J Frederick William Twort and Leonard Erskine Hill | February 1915 |
| RR/21/21 | Referee's report by John Scott Haldane, on a paper 'Report of the monte rosa expedition of 1911' by Joseph Barcroft, M Camis, C G Mathison, Ff Roberts and J H Ryffel | [January 1914] |
| MS/603/1/56 | Letter from J [Joseph] Barcroft, 13 Grange Road, Cambridge, to [Joseph] Larmor | 10 March [no year] |
| RR/65/94 | Referee's report by Joseph Barcroft, on a paper 'On the blood circulation and metabolism of sabellids' by Harold Munro Fox | May 1938 |
| NLB/65/231 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [William] Bateson, Esq., FRS; also sent to Professor [Alfred] Fowler, Professor [Godfrey Harold] Hardy, Dr [Frederick Frost] Blackman, Professor [John Bretland] Farmer, Professor [Frederick Gowland] Hopkins, Dr [Arthur] Smith Woodward, Dr [Frank Watson] Dyson, [Charles Thomson Rees] Wilson Esq., [Joseph] Barcroft Esq. | 24 September 1923 |
| NLB/69/926 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to W. Felolberg Esq., National Institute for Medical Research, Hampstead, NW3 | 19 November 1926 |
| 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 |
| RR/30/11 | Referee's report by Archibald Vivian Hill, on a paper 'On the correlation between the spectra of various hæmoglobins and their relative affinities for oxygen and carbon monoxide' by M L Anson, Joseph Barcroft, A E Mirsky and S Oinuma | [1924] |
| RR/71/150 | Letter from Francis John Worsley Roughton, regarding a series of papers by Archibald Vivian Hill, and an obituary for Joseph Barcroft | 5 November 1948 |
| RR/19/38 | Referee's report by Joseph Barcroft, on a paper 'Physiological observations made on Pike's Peak, Colorado, with special reference to adaptation to low barometric pressures' by Claude Gordon Douglas, John Scott Haldane, Yandell Henderson and Edward C Schneider | [October 1912] |
| RR/45/36 | Referee's report by Joseph Barcroft, on a paper 'Experimental researches on the emission of oxygen by the pelvic filaments of the male lepidosiren with some experiments on Symbranchus marmoratus' by J T Cunningham and D M Reid | [October 1931] |
| RR/48/23 | Referee's report by Joseph Barcroft, on a paper 'Estimation of haematin iron and the oxidation-reduction equivalent of cytochrome c' by Robert Hill and David Keilin | [September 1933] |
| RR/54/100 | Referee's report by Joseph Barcroft, on a paper 'The secretory phenomena in the oviduct of the fowl, including the process of shell formation examined by the microincineration technique' by K C Richardson | 5 August 1934 |
| MS/603/1/54 | Letter from Joseph Barcroft, Glenveagh, to [Joseph] Larmor | 3 February [no year] |