Correspondence with Winston Churchill regarding his four black swans
Correspondence with Gerald Durrell regarding animals to be deposited at London Zoo, the exchange of Gough Island Moorhens for a pair of Rheas, a publication by the International Union for the Preservation of Nature on extinct and vanishing birds, a trip to Argentina, the diet of Giant Pangolins, and the care of Notornis
Correspondence with Sir Clive Milnes-Coates regarding the purchase of Tufted Ducks and the eggs of Reeves Pheasant
Correspondence with Peter Scott of The Severn Wildfowl Trust regarding Whoopers for the Princess Royal, a Hawaiian duck, a Black Swan from Sir Winston, an exchange of ducks, methods of preventing birds' flight, Greylag Geese, the Scientific Advisory Committee of The Severn Wildfowl Trust, a Brazilian Teal duck brought by Gerald Durrell, tickets for admission to London Zoo and labels
Diary of James Thompson, listing general payments and accounts
Early papers regarding the Aquarium at London Zoo, including correspondence, price lists, reports on visits to Hamburg, Berlin, Brussels and Dresden
Includes black and white photographs of continental zoos
Letters from C J Battersby, of the British Museum (Natural History), regarding Dr Smith's specimens, the feeding of snakes, papers bought for Joan Procter, and Christmas greetings
Correspondence with Dr Coldstream regarding the American Reptile Study Society, and a tour of the reptile house for his son and his friend
Correspondence with Harding Cox requesting Joan Procter to write a book on Reptiles for general readers