Letters from Jules Verreaux of the Museum d'Histoire Naturelle, to Philip Lutley Sclater
Letter from Michael Rogers Oldfield Thomas of the British Museum (Natural History) to Philip Lutley Sclater regarding the skin of a giraffe
Letters from Sir Lawrence Alma Tadema regarding an unmounted lion's skin and a letter in support of an artist being allowed to study in the Zoological Gardens
Letter from William Henry Sykes to Philip Lutley Sclater regarding the Indian Museum
Letters from Carl Jacob Sundevall, Director of the Royal Museum Stockholm, to Philip Lutley Sclater regarding specimens found in the Museum such as Galapagos birds
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 Johann Ludwig Gerhard Krefft of the Australian Museum in Sydney, to Philip Lutley Sclater
Letter from, Bruce S Ingram to Philip Lutley Sclater requesting an illustration in the Illustrated London News of the mammal newly discovered by Sir Harry Johnston
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 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