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

Memorandum by the Secretary regarding the care of animals (mammals, birds, reptiles, fishes, etc) in transport

Memorandum by the Secretary on the care of animals (mammals, birds, reptiles, fishes, etc) in transport

Memorandum regarding periods of fertility and the fertility rates of the various species of mammals on Exhibition at the Gardens of the Zoological Society of London since 1826

Papers relating to the construction of a Small Mammal House at ZSL London Zoo

Correspondence regarding the construction of a Small Mammal House at ZSL London Zoo

Plans of the Small Mammal House at ZSL London Zoo

Letter regarding the shipment of 29 boxes of small live British mammals and birds to the Philadelphia Zoological Gardens

Correspondence between James & Hodder and Geoffrey Marr Vevers regarding the collection of mammals and birds from the Philadelphia Zoo which arrived on the S.S.Sofie Bakke for the Zoological Society of London

Correspondence between the Ministry of Agriculture and Geoffrey Marr Vevers regarding licences for the movement of animals to the Sanatorium and Quarantine Stations in the Zoological Gardens, a Vicunuas infected with sarcoptic mange, the importation of dogs and cats, animals shipped by the SS Arakaka, the detention of foxes in the Mammal House, the purchase of African Weaver Finches and Leopard cubs on board the warship Victorious