Reports of the Curator of the Aquarium, Curator of Mammals, Curator of Birds, Pathologist, Veterinary Officer, Director for the Animal Welfare and Husbandry Committee of the Zoological Society of London, with agendas and minutes. Also papers on 'Fats as Limiting Substances or as Activators of Respiratory Exchange, Cell Growth and Regeneration' by J Budwig, 'Deficiency of Essential Fatty Acids in Lower Animals' by H M Sinclair

Correspondence between Alan Francis Brooke Officers of the Zoological Society of London regarding an evening reception for Fellows, Scientific Meetings, Council Meeting relating to George Cansdale, awards for staff of the Society, Minty's Motion put forward at a Ordinary General Meeting, the Annual General Meeting, Council Meetings, and the Bird Protection Bill

Correspondence between Alan Francis Brooke and Officers of the Zoological Society of London regarding his resignation from the Presidency of the Zoological Society of London, the Annual General Meeting, and a collection of Australian mammals and birds

Correspondence with K Drysdale regarding birds being brought by Drysdale to London Zoo and accommodation for two Cheetahs in quarantine

Correspondence with Lady Olive Bailie regarding her trip to London Zoo and a tour of the birds, and invitation to see her collection of birds, and an offer of Masked Lovebirds for Lady Bailie

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'

Letter from Allan, Deffell & Co. to David William Mitchell requesting assistance for Mr James Thompson and a collection of birds and some quadrapeds

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 Albert Geoffroy Saint-Hilaire, of the Jardin Zoologique D'Acclimatation to Philip Lutley Sclater regarding matters including the transport of kangaroos and birds to be sent to the Zoological Society of London