Correspondence with Peter Scott and the Wild Fowl Trust regarding the exchange of animals, and the Waterfowl Registry
Correspondence with F Kimber & Sons, importers of animals and birds from all parts of the world, regarding surplus stock at the Zoological Society of London
Correspondence with Margaret Harris regarding the leopard called Bingo which she sent to London Zoo in 1946, with pictures of Bingo as a cub
Correspondence with D S Sorrell regarding the collecting of animals for the Zoological Society of London
Correspondence with public about Pipaluk and Mosa, ex-ZSL polar bears, in Katowice Zoo, Poland
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
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
Letters from Edward Smith Stanley regarding matters concerning the government, problems of the Zoological Society of London, supply and exchange of animals, discussion of descriptions and well-being of animals and the hatching of eggs
Letters from Henry Walter Bates to Philip Lutley Sclater regarding his research and animals collected by Paul Du Chaillu
Letters from Herbrand Arthur Russell to Philip Lutley Sclater regarding the purchase of animals, his election as member of the council of the Zoological Society, his attendance at meetings and the appointment of a veterinary surgeon at the Zoological Society