| RefNo | Title | Date |
| EC/1922/10 | Pembrey, Marcus Seymour: 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 |
| NLB/3/252 | Copy letter from Herbert Rix, to Professor John Scott Burdon Sanderson, Fellow of the Royal Society | 24 April 1889 |
| NLB/52/746 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to John M. O'Connor Esquire; University College, Dublin | 21 February 1916 |
| RR/41/77 | Referee's report by Marcus Seymour Pembrey, on a paper 'Observations on certain physiological processes of the marmot.II.—The respiration' by G Endres and H Taylor | July 1930 |
| 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/33/70 | Referee's report by Marcus Seymour Pembrey, on a paper 'The heat liberated by the beating heart' by E Fischer | January 1926 |
| RR/44/128 | Referee's report by Marcus Seymour Pembrey, on a paper 'Further investigation of sweating and sweat' by A G R Whitehouse | March 1931 |
| RR/36/22 | Referee's report by Marcus Seymour Pembrey, on a paper 'The action of guanidins on the melanophores of the skin of the frog (Rana temporaria)' by Severo Ochoa | [October 1927] |
| RR/41/76 | Second referee's report by Marcus Seymour Pembrey, on a paper 'Observations on certain physiological processes of the marmot. I.—The heart' by G Endres | July 1930 |
| NLB/64/794 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Dr. [Marcus Seymour] Pembrey FRS. | 19 June 1923 |
| RR/38/57 | Referee's report by Marcus Seymour Pembrey, on a paper 'The loss of water and salts through the skin, and the corresponding physiological adjustments' by John Scott Haldane, W Hancock and A G R Whitehouse | April 1929 |
| RR/43/136 | Referee's report by Marcus Seymour Pembrey, on a paper 'On the true metabolic rate of the chick embryo and the respiration of its membranes' by Joseph Needham | November 1931 |
| RR/46/114 | Referee's report by Marcus Seymour Pembrey, on a paper 'The osmotic passage of water and gases through the human skin' by A G R Whitehouse, W Hancock and John Scott Haldane | [July 1932] |
| NLB/57/391 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr MS [Marcus Seymour] Pembrey, FRS | 30 October 1919 |
| RR/51/128 | Referee's report by Marcus Seymour Pembrey, on a paper 'The permeability of human skin to electrolytes' by A G R Whitehouse and Hugh Ramage | [February 1933] |
| NLB/69/67 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Sir John Rose Bradford, K.C.M.G FRS | 23 December 1925 |
| NLB/65/27 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Marcus Seymour] Pembrey, FRS | 16 July 1923 |
| IM/003490 | Pembrey, Marcus Seymour | nd |
| NLB/65/150 | Copy letter from unknown correspondent; to Sir [John] Rose Bradford, KCMG, FRS, The Chairman of the Physiology Sectional Committee | 16 August 1923 |
| NLB/64/846 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Marcus Seymour] Pembrey, FRS | 29 June 1923 |
| NLB/64/860 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Marcus Seymour] Pembrey, FRS | 2 July 1923 |
| NLB/65/133 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Marcus Seymour] Pembrey, FRS | 8 August 1923 |
| NLB/64/923 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Marcus Seymour] Pembrey, FRS | 11 July 1923 |
| NLB/69/144 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Marcus Seymour] Pembray, FRS | 21 January 1926 |
| NLB/68/708 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Marcus Seymour] Pembrey, FRS | 19 October 1925 |
| NLB/69/686 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Marcus Seymour] Pembrey, FRS, Treasurer of the Physiological Society | 20 July 1926 |
| NLB/72/624 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Marcus Seymour] Pembrey, FRS | 29 January 1930 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| RR/10/266 | Referee's report by John Scott Burdon-Sanderson, on a paper 'The accurate determination of carbonic acid and moisture in air' by John Scott Haldane and Marcus Seymour Pembrey | 12 May 1889 |
| RR/10/267 | Referee's report by Edward Frankland, on a paper 'The accurate determination of carbonic acid and moisture in air' by John Scott Haldane and Marcus Seymour Pembrey | 15 May 1889 |
| RR/41/78 | Referee's report by Marcus Seymour Pembrey, on a paper 'Observations on certain physiological processes of the marmot. I.—The heart' by G Endres, Bryan Harold Cabot Matthews, H Taylor and Alison Dale | July 1930 |
| RR/46/37 | Referee's report by Marcus Seymour Pembrey, on a paper 'A manometric analysis of the metabolism in avian ontogenesis - II. The effects of fluoride, Iodoacetate, and other reagents on the respiration of blastoderm, embryo, and yolk-sac' by Joseph Needham | [October 1932] |
| RR/46/38 | Referee's report by Marcus Seymour Pembrey, on a paper 'A manometric analysis of the metabolism in avian ontogenesis. I.—The normal respiratory quotient of blastoderm, embryo, and yolk-sac during the first week of development' by Joseph Needham | [October 1932] |