Letters from Sir Francis John Pakenham to Philip Lutley Sclater regarding the Picomayo expedition and Mr Kerr's collection

Letters from Sir Thomas Townsend Pears to Philip Lutley Sclater regarding an Abyssinian expedition, during which Mr William Jesse collected about 1250 specimens

Letter from Robert Falcon Scott to Philip Lutley Sclater regarding assistance with the National Antarctic Expedition

Letter from Lieutenant C Fourie, Director of the African Geographical Expedition regarding proposed plans for the expedition

Journal of voyages to the W Indies, S America, E Indies and China, Cape of Good Hope and St Helena, from 1823 to 1831, in the Barque Charles and H C Ship Berwickshire

Voyage to and from China, in H C Ship Berwickshire, in 1832 and 1833

Descriptions of birds seen

23 journal volumes of approx 180 pages each. 5 vols of photographs illustrating the text

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

Correspondence and papers regarding employees of the Zoological Society of London not receiving profit from their connection with the Society, proposed expeditions, and contracts and agreements