Correspondence between E H Tong and George Soper Cansdale regarding matters at Whipsnade, including causes of deaths of animals, animal record cards, the Canadian Department of Mines and Resources, the acquisition of animals, and animals on deposit from Germany

Correspondence between Toronto Zoo and George Soper Cansdale regarding the Lord Chamberlain providing the Zoological Society of London with a pair of King's Swans from the River Thames, which were then sent to Toronto Zoo in exchange for Beavers. Also other exchanges between Toronto Zoo and the Zoological Society of London

Correspondence between the Department of Mines & Resources in Canada and Geoffrey Marr Vevers regarding a donation of two young bull American bison from Elk Island

Correspondence between the Department of Mines & Resources in Canada and Geoffrey Marr Vevers regarding a shipment of two bull bison for London Zoo