Letter from Sir Charles Wood, 1st Viscount Halifax, regarding the museum collection of the Zoological Society of London
Correspondence between Sir Henry Drummond Wolff and David William Mitchell regarding payments to the Zoological Society of London
Letters from William Hill and Co. to David William Mitchell regarding the price for an engine and boiler at the Zoological Society of London
Bond for Fidelity between John Henry White, a collector, and 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
Articles of Agreement and correspondence between John Warwick with the Zoological Society of London and the Earl of Derby regarding a voyage to Egypt and Nubia to procure live animals and birds for the Zoological Society of Lonon
Letters from Upton, Upton & Johnson regarding the Zoological Society of London's claim against Mr Mitchell's late brother and late Secretary of the Society, Mr David William Mitchell
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 William Thompson to David William Mitchell regarding statements of accounts of the Zoological Society of London
Correspondence between James Thompson, Head Keeper at London Zoo, and David William Mitchell regarding the expense to carry out the experiment of rearing mammals and birds in the Hill Country for transmission to Enland, and the transmission of a collection of Himalayan pheasants to the Zoological Society of London