Correspondence with foreign royalty such as Prince Ranier of Monaco, Prince and Princess Hitachi of Japan, King Hussein of Jordan, King Peter II and Queen Salote of Tonga
Letter from William T Fraser to Philip Lutley Sclater regarding the existence of the rhinoceros in Borneo
Correspondence between Wilfred Frost and George Soper Cansdale regarding a shipment of birds from New Guinea and Indonesia
Correspondence between Wilfred C Frost and Geoffrey Marr Vevers regarding requests for animals from India for the Zoological Society of London
Letter to Ganpat Rao Gaekwad, Guicowar of Baroda, from the Zoological Society of London to acknowledge the safe arrival of a pair of tigers
Correspondence between Gaekwar of Baroda and George Soper Cansdale regarding the Maharaja presenting a Tiger cub to the Zoological Society of London
Correspondence between Sir William Gowers and Geoffrey Marr Vevers regarding A J Ferrier who wrote the book 'Elephants in Burma', and a question on the weight of an elephant before death
Letters from Grindlay and Co to Philip Lutley Sclater regarding the transport of animals and birds from Calcutta
Correspondence between Mr and Mrs Gunn and George Soper Cansdale, and photograph, regarding a 16 month old Cheetah from Saudi Arabia
Handwritten notes by J D Romer on Hong Kong chelonians, lizards and amphibians, 1947-1965; Hong Kong amphibians, 1967-1981; Hong Kong chelonians and lizards, 1967-1981; Hong Kong snakes, 1947-1967; and Hong Kong snakes, 1967-1981