Correspondence with Julian Huxley regarding birds to be delivered to the Royal Society along with slides for a lecture he gave
Letters from Thomas Henry Huxley to Philip Lutley Sclater asking about available birds for dissection, meetings of the Council of the Zoological Society of London, proofs and woodcuts for a paper, specimens of birds and the Marine Biological Association
Letters from William Henry Huxley to Philip Lutley Sclater regarding alligators of North America and other matters
Correspondence between Gerald Hyde and George Soper Cansdale regarding requests to purchase Syrian Brown Bears, Leopards and Cheetahs from the Zoological Society of London
Letters to Philip Lutley Sclater
Letter from Philip Lutley Sclater to Charles P Ibbetson regarding his smoking in a part of the garden of the Zoological Society of London where smoking was prohibited
Paper on identification of gardens pests, signed by H M Lefroy
Correspondence between B J Iken and Geoffrey Marr Vevers regarding a collection of animals held by Mrs Taylor of the Yellow Fever Institute in Lagos and the return of B J Iken to his role at the Zoo