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
Papers relating to a visit by the Emperor of Japan to the Zoological Society of London
Notebook containing descriptions of birds numbered by reference to numbered drawings. No.1 Vol.1 (1-169); No.3 Vol.3 (340-488); No.6 Vol.6 (755-855)
Catalogue of a Collection of Mammalia from Nepal, Sikim, and Tibet, presented to the Hon. East India Company by B.H. Hodgson, Esq., in 1853. By Thomas Horsfield, M.D., F.R.S., etc. (From the Proceedings of ZSL, 1856). Annotated by Hodgson. 2 copies.
Black and white photographs of 'unusually coloured cobras' (Naja naja) in captivity in Hong Kong, dated 21 December 1979 and 12 January 1980
Black and white photographs of the landscape of Tai Mo Shan and Victoria Peak, Hong Kong, illustrating herpetofauna habitats
Colour negatives of various views of Hong Kong Zoological and Botanical Gardens, dated 1975, 6 March 1977, 12 March 1977, 13 March 1977
Colour negatives taken in the Hong Kong Zoological and Botanical Gardens, of the mammal house, dated November 1974; lemurs, marmosets, a Celebes ape and an agouti, dated 1975; orangutans, dated May 1978; a hand-reared squirrel monkey and other mammals, dated 25 September 1975
Black and white and colour photographs, mainly of various zoos, including Frankfurt, Berlin, Jersey, Antwerp, Stuttgart, Bristol, Paignton, Thoiry, Ueno (Tokyo) and Singapore, as well as images of herpetological specimens in captivity
Mounted colour slides mainly of snake specimens, but also including images of the Hong Kong Zoological and Botanical Gardens and local landscape, along with some personal images