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
Report by G M Vevers on his visit to Carl Hagenbeck's Animal Park at Stellingen, with a drawing of Monkey Hill at Stellingen
Papers regarding the Michael Sobell Enclosure for Apes and Monkeys
Certificate presented to the Architects Department of the Zoological Society of London by The Structural Steel Design Awards Scheme for the Michael Sobell Pavilions for Apes and Monkeys
Report by the Zoological Society of London on the Michael Sobell Pavilions for Apes and Monkeys
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