Letters from Thomas Horsfield regarding his inability to meet Yarrell and Sabine, examination of his proofs, information of remarks of any kind on a species of elephant described in a passage he quotes from Bishop Heber's journal, Bennet's judgement on descriptions of several species, and an introduction to Mr Hugh Murrey who was was engaged in publication of an Account of China for the Edinburgh Cabinet Library in Zoology of China

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

Records relating to the opening of enclosures and buildings including the Michael Sobell Pavilion, the Snowdon Aviary, the Elephant and Rhino Pavilion, and the Nuffield Institute

Correspondence regarding an offer to supply Elephants and Rhinocersoses to the Zoological Society of London

Correspondence between Hans Heck and Julian Sorell Huxley regarding the construction of a new Elephant House at the Zoological Society of London

Correspondence between Albert Pam and Julian Sorell Huxley regarding plans for the new Elephant House and meetings of the Lay-Out Committee

Correspondence between E Thompson and Julian Sorell Huxley regarding Sir Stanley Reed, the Maharaja of Bhavnagar and the construction of the new Elephant House at London Zoo

Correspondence between Julian Sorell Huxley and Achille Urbain of the Parc Zoologique de Vincennes in Paris, regarding the construction of the new Elephant House at London Zoo

Papers on the proposed new Elephant House

Correspondence between Thomas Tait and the Zoological Society of London regarding the construction of the new Elephant House