Correspondence between Sir James Outram and David William Mitchell regarding an offer of tigers and a request for game birds, hunting cheetahs, the common leopard, hyenas, jackals and wolves
Letters from Sir Richard Owen to David William Mitchell regarding the cost of keeping elephants, his attendance at meetings of the Council of the Zoological Society of London, and his consent to act as Vice President
Letters from Sir Charles Beaumont Phipps to David William Mitchell regarding Prince Albert
Letter from Regent's Canal Company to David William Mitchell regarding the fence on the south side of the Gardens of the Zoological Society of London
Letter from Sautet and Robinet to David William Mitchell regarding the destruction of insects in the Gardens of the Zoological Society of London
Letters from Alexander Shaw to David William Mitchell regarding tigers from Bombay sent to the Zoological Society of London
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 William Smith to David William Mitchell regarding the price of Reports and Proceedings of the Zoological Society of London
Letter from the Societe Royal d'Histoire Naturelle de Gand to David William Mitchell regarding the payment for delivery of animals
List of prices from Stock and Son for crown, sheet and patent plate glass