Letters from Sir Charles Lyell to Philip Lutley Sclater regarding the donations of a text regarding Charles Darwin to the Library of the Zoological Society of London, a list of books to be purchased for the Library, the foundation of a zoological society in Boston, Massachusetts, and a request from keepers to read books on natural history and the animals in their care
Letters from Charles Kingsley to Philip Lutley Sclater regarding naturalists in Denver, Colorado, specimens for the Zoological Society of London, and the paper of the ex-governor of Trinidad
Correspondence between James & Hodder and Geoffrey Marr Vevers regarding the collection of mammals and birds from the Philadelphia Zoo which arrived on the S.S.Sofie Bakke for the Zoological Society of London
Letters from William Henry Huxley to Philip Lutley Sclater regarding alligators of North America and other matters
Letters from W A Conklin of the Department of Public Parks in New York, to Philip Lutley Sclater regarding the birth of an elephant at a circus in Philadelphia
Correspondence between the Colonial Office and George Soper Cansdale regarding fry of Tilapia Zillii to be despatched to Antigue, an Tilapia Mossambica and Trichogaster Pectoralis Regan from Malaya for the West Indies
Correspondence between Chicago Zoo and Geoffrey Marr Vevers regarding a request for Hedgehogs and other animals at Chicago Zoo, and the exchange of animals with the Zoological Society of London
Letters from Arthur E Brown of the Zoological Society of Philadelphia, to Philip Lutley Sclater regarding the birth of an African elephant
Correspondence between Rowley Bristow and Geoffrey Marr Vevers regarding material showing the comparative anatomy of the forearm and Ronald Furlong of St Thomas' Hospital who was working on the surgery of the hand and tendons in America
Correspondence between Bristol Zoo and Geoffrey Marr Vevers regarding a collection from Philadelphia for the Zoological Society of London, a pair of Husky Dogs for Bristol Zoo, the transfer of surplus animals from Alabi, By-Laws of the Zoological Society of London, import licences, a shipment of raccoons, a Duiker onboard Ocean Fame for the Zoological Society of London, an order for a pair of Sea Lions, information on staff salary scales, a Serval Cat donated by Manchester Zoo and pathological information regarding primary amyloidosis