Letters from John Edward Grey of the British Museum to Philip Lutley Sclater regarding the key to the gardens of the Zoological Society of London, a paper on tortoises, specimens of a monkey and lemur to be exhibited at a meeting, the death of a gorilla, meetings of the Council, and reports of the Proceedings of the Zoological Society of London

Letter from Henry Lee to Philip Lutley Sclater regarding suggestions from the manager of Land and Water about a monkey

Letters from Wilhelm Carl Hartwig Peters of the Museum Regium Zoologicum, to Philip Lutley Sclater regarding Huxley's paper, a sketch of the plan of the monkey house, plates, specimens in his possession, and his memoirs

Letters from Alfred Russel Wallace to Philip Lutley Sclater regarding the purchase of a joint residential estate, extracts read at meetings of the Zoological Society of London, papers for the Proceedings of the Zoological Society of London and Natural Science, his publication on 'Monkeys - their structure, affinities and distribution', a shipment of birds for the Society, improvements to the Gardens of the Zoological Society of London, notes on the Umbrella Bird, his election as a Fellow, papers on marine mammals, opinions on theories by Darwin, Birds of Paradise, and a list of butterflies of Costa Rica

Letter from Richard Caton Woodville to Philip Lutley Sclater asking about a rare monkey from the Gold Coast

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 with the collector B L Mitchell regarding animals to be collected from Nyasaland for the Zoological Society of London, including Vervet Monkeys, Jackal cubs, Martial Hawk Eagle, Pangolins and Bush Babies

Correspondence with G C Sauvage regarding animals for sale including Sitentunga, Reticulated Giraffes, a Brazza Monkey, Waterbuck, Vultures, Gazelles and Canaries

Correspondence with Allen Silver regarding the donation of a Guereza Monkey to the Zoological Society of London

Correspondence American Express and Geoffrey Marr Vevers regarding animals being shipped to the Zoological Society of London, including mink on board the SS Corrales, a white owl on SS Empire McCullum, a collection of animals aboard the SS Isipingo, a sloth bear cub from Bombay on SS Mantola, five monkeys on SS Isipingo, a bear cub on SS Mantola, animals on SS Deido, kangaroos on SS Rivercrest, animals aboard SS Tarkwa, caotimundis and capybara on SS Arakaka, a leopard on SS Congonia, a bandicoot on SS Brittanic, a shipment on SS Freetown, an ocelot and owl on Arakaka