Correspondence between Edward Smith-Stanley, Earl of Derby, and David William Mitchell regarding a list of desirables from the sale catalogue of the aviary and menageries at Knowsley Hall
Letters from Herbrand Arthur Russell to Philip Lutley Sclater regarding the purchase of animals, his election as member of the council of the Zoological Society, his attendance at meetings and the appointment of a veterinary surgeon at the Zoological Society
Letters from Lionel Walter Rothschild, 2nd Baron Rothschild, to Philip Lutley Sclater regarding an expedition to the Sandwich Islands, papers on birds of the Sandwich Islands, drawings of a Rail, ornithological exhibitions, the sale of a rhinoceros, his drawing of a rhinoceros to be published in the Proceedings of the Zoological Society of London, his Cassowaries at Tring, a transfer of Tragelaphus, Galapagos Tortoises, Eclectus Parrots, Lemurs and Zebras
Letters from George Frederick Samuel Robinson, 1st Marquess of Ripon, to Philip Lutley Sclater regarding Japanese deer for sale at the Zoological Society of London, and a deputation of Swazi Chiefs who would like to visit the Gardens of the Zoological Society of London
Correspondence between Eunice Kidd, Chairman of the Small Livestock Sales Sub-Committee of the Red Cross Agriculture Fund, and the Zoological Society of London regarding a poultry sale held in the Gardens
Letters from William Jamrach to Philip Lutley Sclater regarding the price of animals for sale, including lions
Correspondence between John Houston, David William Mitchell and the South Australian Banking Company regarding the sale of birds and a request by Prince Albert to bring a Platypus, Lyre Tailed Pheasant and Black Mackaw to the Zoological Society of London
Letters from William Heame regarding the arrival of the Brig 'Adak' at London Docks with a Hawksbill Turtle, 2 Land Tortoises, 1 male ditto, 1 Pigeon, 6 Doves and a flamingo which is supposed to be dead and only a skin. Also speaks of the arrival of his display cabinet and asks the Zoological Society of London to select and withdraw all the insects they desire from drawers of his in their possession
Letters from Carl Hagenbeck to Philip Lutley Sclater regarding his catalogue of animals for sale to the Zoological Society of London, and an order from the British government for the supply of dromedaries
Memorandum of agreement between Hugh Cuming and the Zoological Society of London for his collection of shells. Also one letter to Philip Lutley Sclater regarding the agreement