| Reference number | Title | Date |
| IM/GA/WRS/8353 | Hammond, Sir John | nd |
| IM/GA/WS/2082 | Hammond, Sir John | nd |
| MDA/A/12/189 | Letter from J Pike to Robert Robinson, University of Cambridge, School of Agriculture, Cambridge | 18 September 1947 |
| MDA/A/12/187 | Letter from J Pike to Robert Robinson, University of Cambridge, School of Agriculture, Cambridge | 8 October 1947 |
| RR/21/86 | Referee's report by Ernest Henry Starling, on a paper 'The functional correlation between the ovaries, uterus, and mammary glands in the rabbit, with observations on the oestrous cycle' by John Hammond and Francis Hugh Adam Marshall | [January 1914] |
| RR/52/13 | Referee's report by John Hammond, on a paper 'The reaction of anæstrous hedgehogs to experimental conditions' by M Allanson and R Deanesly | June 1934 |
| RR/48/20 | Referee's report by John Hammond, on a paper 'Studies on the hypophysectomized ferret. IV.—Comparison of the reproductive organs during anoestrus and after hypophysectomy' by Margaret Hill and Alan Sterling Parkes | [July 1933] |
| RR/55/62 | Referee's report by John Hammond, on a paper 'Reproduction of the Bank Vole (Evotomys glareolus, schreber). I - The oestrous cycle of the female' by Francis William Rogers Brambell and I W Rowlands | 23 September 1935 |
| RR/48/21 | Referee's report by John Hammond, on a paper 'Studies on the hypophysectomized ferret. V. -Effect of hypophysectomy on the response of the female ferret to additional Illumination during anoestrus' by Margaret Hill and Alan Sterling Parkes | [July 1933] |
| RR/51/127 | Referee's report by John Hammond, on a paper 'The duration of fertility and the histological changes in the reproductive organs after ligation of the vasa efferentia in the rat' by William E White | [July 1933] |
| NLB/65/869 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 19 January 1924 |
| RR/50/5 | Referee's report by John Hammond, on a paper 'The reproductive processes of certain mammals. Part VII. - Seasonal variation in the reproductive organs of the male hedgehog' by Marjorie Allanson | October 1933 |
| RR/53/4 | Referee's report by John Hammond, on a paper 'Reproduction in the common shrew (Sorex araneus Linnaeus) I—The oestrous cycle of the female' by Francis William Rogers Brambell | [August 1934] |
| RR/60/3 | Referee's report by John Hammond, on a paper 'A convenient method for obtaining bovine arterial blood' by W Richards Graham, Herbert Davenport Kay and R A McIntosh | January 1936 |
| RR/59/79 | Referee's report by John Hammond, on a paper 'The effect of thyroxine on milk secretion and on the phosphatase of the blood and milk of the lactating cow' by Sydney John Folley and Paul White | [January 1936] |
| RR/65/269 | Referee's report by Alan Sterling Parkes, on a paper 'The maternal effects on growth and conformation in shire horse-shetland pony crosses' by Arthur Walton and John Hammond | March 1938 |
| RR/67/223 | Referee's report by Alan Sterling Parkes, on a paper 'Anatomical and histological changes during the oestrous cycle in the mare' by John Hammond and Kazimierz Wodzicki | December 1940 |
| RR/30/61 | Referee's report by Walter Heape, on a paper 'The physiology of reproduction in the cow' by John Hammond | [March 1924] |
| NLB/66/30 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [John] Hammond Esq., School of Agriculture, Cambridge | 12 February 1924 |
| EC/1933/07 | Hammond, Sir John: certificate of election to the Royal Society | |
| RR/39/89 | Referee's report by James Peter Hill, on a paper 'Oestrus and pseudo-pregnancy in the ferret' by John Hammond and Francis Hugh Adam Marshall | [June 1929] |
| RR/39/88 | Referee's report by Edward Albert Sharpey-Schafer, on a paper 'Oestrus and pseudo-pregnancy in the ferret' by John Hammond and Francis Hugh Adam Marshall | 23 April 1929 |
| RR/57/64 | Referee's report by John Hammond, on a paper 'The menstrual cycle of the primates VIII—The œstrin-withdrawal theory of menstruation' by Solly Zuckerman | 1 March 1935 |
| RR/53/1 | Referee's report by John Hammond, on a paper 'Reproduction in the common shrew (Sorex araneus Linnæus). II—Seasonal changes in the reproductive organs of the male' by Francis William Rogers Brambell | [August 1934] |
| RR/57/65 | Referee's report by John Hammond, on a paper 'The menstrual cycle of the primates. IX—The effect of œstrin on the denervated sexual skin' by Solly Zuckerman | 1 March 1935 |
| RR/48/22 | Referee's report by John Hammond, on a paper 'Studies on the hypophysectomized ferret, VI. -Comparison of the response to oestrin of anoestrous, ovariectomized and hypophysectomized ferrets' by Margaret Hill and Alan Sterling Parkes | [July 1933] |
| RR/57/14 | Referee's report by John Hammond, on a paper 'Reproduction of the Bank Vole (Evotomys glareolus), Schreber). II - Seasonal changes in the reproductive organs of the male' by I W Rowlands | [September 1935] |
| RR/60/2 | Referee's report by John Hammond, on a paper 'The precursors in cows’ blood of milk fat and other milk constituents' by W Richards Graham, T S G Jones and Herbert Davenport Kay | January 1936 |
| RR/78/35 | Referee's report by John Hammond, on a paper 'Elephantulus going into anoestrus; menstruation and abortion' by C J van der Horst | 7 August 1952 |
| RR/78/37 | Referee's report by John Hammond, on a paper 'The lactation cycle of elephantulus myurus jamesoni (Chubb)' by Muriel J McKerrow | 27 July 1952 |
| RR/78/40 | Referee's report by John Hammond, on a paper 'The male genital system and reproductive cycle of Elephantulus myurus jamesoni (Chubb)' by Zelda G Stoch | 20 July 1952 |
| RR/80/33 | Referee's report by John Hammond, on a paper 'The presence and role of inositol and certain other substances in the seminal vesicle secretion of the boar' by Thaddeus Robert Rudolph Mann | 21 July 1953 |
| RR/76/92 | Referee's report by John Hammond, on a paper 'Observations on the structure of human spermatozoa: an electron microscope enquiry' by Marlene H Friedlaender | 12 January 1952 |