Letters from Jules Verreaux of the Museum d'Histoire Naturelle, to Philip Lutley Sclater
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
Letters from William Edward de Winton to Philip Lutley Sclater regarding appointment as Acting Superintendent of the Gardens of the Zoological Society of London and Secretary to the Garden Committee, and his resignation in 1903
Letters from Albert Geoffroy Saint-Hilaire, of the Jardin Zoologique D'Acclimatation to Philip Lutley Sclater regarding matters including the transport of kangaroos and birds to be sent to the Zoological Society of London
Letters from Enrico Hillyer Giglioli to Philip Lutley Sclater regarding his paper on Halobates for the Proceedings of the Zoological Society of London
Letters from Christian Anton Goering to Philip Lutley Sclater regarding his visit to Venezuela and discovery of birds of Merida
Letters from Thomas de Grey to Philip Lutley Sclater regarding his expedition down the Rocky Mountains into New Mexico, skeletons of mammals for the Cambridge museum, and a paper on West Indian Microlepidoptera for the Proceedings of the Zoological Society of London
Letters from Grindlay and Co to Philip Lutley Sclater regarding the transport of animals and birds from Calcutta
Letters from Morton Allport to Philip Lutley Sclater about the introduction of salmon to the waters of Tasmania
Letters from Spencer Fullerton Baird of Washington to Philip Lutley Sclater regarding ornithology