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

Letter from William Schwenck Gilbert to Peter Chalmers Mitchell regarding an offer of two monkeys to the Zoological Society of London

Correspondence between P M Burton and Geoffrey Marr Vevers regarding a young Monkey, three Chameleons, a Python and a Boa Constrictor for the Zoological Society of London

Letter regarding an order of 4 Pythons, 6 Bengal Monitors and 50 Rhesus Monkeys by the Zoological Society of London

Correspondence between G W Pulfer and Geoffrey Marr Vevers regarding the shipment of a pet monkey to the United Kingdom from South East Asia

Correspondence between E F Pullinger and Geoffrey Marr Vevers regarding the import of monkeys

Correspondence between the Yellow Fever Research Institute in Entebbe, Uganda and Geoffrey Marr Vevers regarding a shipment of Monkeys and Red River Hog for 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

Correspondence with Geoffrey Marr Vevers regarding an adoption scheme run by the Zoological Society of London, including for a Nagor Antelope, a Monkey called Bingo, a Green Monkey called Charlie, red and yellow macaws, poultry for the Children's Zoo, Patagonian Cavy, Sooty Mangabey, Parrots, a Dingo called Tony, Marmots, Minnie the Tree Kangaroo, Ali the Bear, a Fox cub called Margery, a Sooty Mangabey called Betsy, and a lion and snowy owl