Letters from Phineas Taylor Barnum to Philip Lutley Sclater regarding the purchase and transfer of Alice the elephant. Also a letter regarding the purchase of specimens for Barnum's Zoological Museum
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
Letters from Abraham Dee Bartlett to Philip Lutley Sclater regarding the doors to the new elephant house, animal food consumption, the female rhinoceros, the mounted specimen of a young gorilla, authorisation to sell Alice the elephant to Mr Barnum, and the theft of an owl
Correspondence between Clarence Bartlett, Philip Lutley Sclater and Balmoral Castle regarding the skin and skeleton of a giraffe and the donation of the skin to the Natural History Museum. Also telegrams from Balmoral Castle sending the Queen's condolences on the death of the giraffe and her request that it should be buried
Letters from Edward Pierson Ramsay, Curator of the Australian Museum, to Philip Lutley Sclater regarding the transportation of a ceratodus to the Zoological Society of London
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 Joseph Henry of the Smithsonian Institute, to Philip Lutley Sclater regarding botanical specimens from the Zoological Society of London and specimens of South American birds to be named and described for the Smithsonian Institute
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 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