Letters from Henry Walter Bates to Philip Lutley Sclater regarding his research and animals collected by Paul Du Chaillu
Letters from John Samuel Budgett to Philip Lutley Sclater regarding his research on okapis and expeditions to study polypterus
Correspondence between Sir Arthur Landsborough Thomson and L Harrison Matthews regarding meetings of the Selection Committee, the Annual Report, meetings of the Finance Committee, meetings of the Publications Committee, statement of the duties of Honorary Officers, the arrangement of Committees, abstracts in the Ibis, the Zoological Record, the Chairman of the Pink Elephants, the Proceedings of the Zoological Society of London, Scientific Meetings, the British Guiana expedition, meetings of the Prosectorial Committee, the United Workers' Association, Professional Fellows, the Medical Research Council, the Centenary celebration of Madras Zoo, allegations against staff, Gerbils of the genus Meriones, and cases of controlling inter-current tuberculosis among colonies of monkeys
Letters from Robert Oliver Cunningham to Philip Lutley Sclater regarding his research and other papers
Correspondence between Cartwright Farmiloe and Geoffrey Marr Vevers regarding a research apiary
Correspondence between James Fisher and Geoffrey Marr Vevers regarding research into raven, crows, rooks and jackdaws
Correspondence between Brian Vesey Fitzgerald and Geoffrey Marr Vevers on feeding bats for a research project on malaria in bats in Palestine
Correspondence between R E Glover and George Soper Cansdale regarding the supply of West African monkeys for research work in England
Correspondence between Philip Manson-Bahr and Geoffrey Marr Vevers regarding research into zoology in relation to tropical medicine, a meeting of the Association of Bird Watchers and Wardens at the Zoological Society of London, and paintings of Birds of Paradise
Correspondence with Geoffrey Marr Vevers regarding medical and veterinary supplies such as microscopes and syringes. Also a letter from the Directorate of Medical Supplies at the Ministry of Supply regarding research into a vaccine for Scrub Typhus and a request for Ostrich Eggs.