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
Letter from John Humphrys regarding the identification of shells he had though of as Indian origin, and a discussion about his collection
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
Letters from John Gould regarding a Zebra that was exhibiting signs of tetanus, the request of a salary of £50 for the new arrangement by the Museum Committee, an expedition to collect specimens for the Zoological Society of London and several gifts to the Society
Letters from Friedrich Finsch, Curator of the Museum of Natural History in Bremen to Philip Lutley Sclater
Letters from Alphonse Milne-Edwards, Director of the Menagerie au Museum d'histoire naturelle, to Philip Lutley Sclater
Letter from Felix Anton Dohrn to Philip Lutley Sclater regarding an enquiry by Gegenbaur and publications of the Zoological Society of London
Letter from Hugh Cuming to Edward Turner Bennett, apologising for being unable to meet him with a portion of his shells