Letters from Sir Robert Ker Porter in Caracas thanking Bennett for the his letter and Proceedings of the Society's committees, the good health of a tapir, a bear belonging to a resident in Caracas, a bird called Curapoas (or Forvies), the shipment of a Capuchin Monkey, 'a very curious little animals of the weasel kind, and six land tortoises by the Brig 'Pedraza', a consignment he received save for the weasel which was washed overboard, and descriptions of the consignment in the 'Pedraza'
Letters from Baring Brothers and Co. to Philip Lutley Sclater regarding the arrival of the ship Renshaw at St Katharine's Docks with the animals shipped by Mr Du Chaillu
Correspondence between Edward Blyth and David William Mitchell regarding the shipment of animals to the Zoological Society of London
Letters from Charles Augustus Murray to David William Mitchell regarding the shipment of animals to the the Gardens of the Zoological Society of London from Egypt, with receipts
Correspondence to and about David William Mitchell regarding royal personages of the Zoological Society of London, shipments of birds, an arrangement with Mr Henry Beale for the conveyance and delivery of Greyhounds and Deerhounds, the Refreshment Rooms, a testimonial for Louis Fraser, the shipment of a Trigress and a Lion, bills of the Zoological Society of London, the estate of David William Mitchell, notes of a committee appointed to examine the state of the accounts between David William Mitchell and the Society, particulars of money due from the executors, and amount of claim against his estate
Letters from Alfred Russel Wallace to Philip Lutley Sclater regarding the purchase of a joint residential estate, extracts read at meetings of the Zoological Society of London, papers for the Proceedings of the Zoological Society of London and Natural Science, his publication on 'Monkeys - their structure, affinities and distribution', a shipment of birds for the Society, improvements to the Gardens of the Zoological Society of London, notes on the Umbrella Bird, his election as a Fellow, papers on marine mammals, opinions on theories by Darwin, Birds of Paradise, and a list of butterflies of Costa Rica
Correspondence between Oliver Stanley, Secretary of State for the Colonies, and the Zoological Society of London regarding a collection of fauna of East Africa
Letters from Frederick John Jackson of the Imperial Institute to Philip Lutley Sclater regarding zoological work of the British Polar Expedition and the offer of three young bear cubs to the Zoological Society of London
Letters from J M Davies regarding the shipment of animals to the Zoological Society of London
Letters from Rajendra Mullick to David William Mitchell giving thanks for a shipment of birds shipped from the Zoological Society of London and reports on zoology, and birds and animals onboard the Prince of Wales for the Zoological Society of London