Correspondence between Cartwright Farmiloe and Geoffrey Marr Vevers regarding a research apiary

Letters from Robert Oliver Cunningham to Philip Lutley Sclater regarding his research and other papers

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

Minutes of a meeting of the Committee for Research on the Okapi at the Zoological Society of London

Minutes of a meeting of the Committee for Research on the Okapi

Letters from John Samuel Budgett to Philip Lutley Sclater regarding his research on okapis and expeditions to study polypterus

Letters from William Bateson of the John Innes Horticultural Institution regarding frogs and further research

Letters from Henry Walter Bates to Philip Lutley Sclater regarding his research and animals collected by Paul Du Chaillu

Minutes of the Aquarium Research Fellowship Committee

Report to the Council of the Zoological Society of London by the Aquarium Research Fellowship Committee