Letters from Hunter and English to David William Mitchell regarding a steam engine and pumping machinery at the Gardens of the Zoological Society of London
Letter from N Melton to David William Mitchell regarding a shipment of crown birds, a monkey and a scotchman bird for the Zoological Society of London
Letter from Alfred Newton to David William Mitchell regarding a shipment of two deerhound and two turkey cocks from St Croix to the Zoological Society of London
Correspondence between West Middlesex Waterworks and David William Mitchell regarding the consumption of water at the Gardens of the Zoological Society of London
Bond for Fidelity between John Henry White, a collector, and the Zoological Society of London
Letter from Sir Charles Wood, 1st Viscount Halifax, regarding the museum collection of the Zoological Society of London
4 letters from unknown authors to David William Mitchell regarding membership of the Zoological Society of London, a large blood hound for the Society and the transportation of animals
Letters from Alexander Agassiz to Philip Lutley Sclater about the collections of British Museum and Jardin du Plantes, Paris
Letter from Cecil Charles Windsor to Philip Lutley Sclater requesting a press pass for the Gardens as he was illustrating a series of articles for the English Illustrated Magazine
Letters from John Anderson to Philip Lutley Sclater regarding the Indian Museum in Calcutta