Letters from Robert Oliver Cunningham to Philip Lutley Sclater regarding his research and other papers
Correspondence between James Fisher and Geoffrey Marr Vevers regarding research into raven, crows, rooks and jackdaws
Minutes of the Zoological Research Committee of the Zoological Society of London
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
Applications from candidates, including Solly Zuckerman, for the Anatomical Research Fellowship at the Zoological Society of London
Minutes of a meeting of the Committee for Research on the Okapi at the Zoological Society of London
Letters from Charles Telfaire to Nicholas Aylward Vigors regarding his research on the Dodo, a tortoise from the Seychelles, tortoises of the Amirante Islands and Mombasa, and a Chamaeleon from the north of Madagascar to be presented to the Zoological Society of London
Letters from John Samuel Budgett to Philip Lutley Sclater regarding his research on okapis and expeditions to study polypterus
Letters from George John Romanes to Philip Lutley Sclater regarding research into whether mutilations are ever inherited and Weismann's theory of heredity
Correspondence between the Yellow Fever Research Institute in Entebbe, Uganda and Geoffrey Marr Vevers regarding a shipment of Monkeys and Red River Hog for the Zoological Society of London