Unmounted colour transparencies of captive snakes

Colour negatives of Indian python in captivity, dated 3 January 1976; captive jaguars, dated 17 June 1977; a hatching budgerigar and of a macaque/Celebes ape (Macaca nigra) and baby, dated September 1977; snakes in captivity, and some personal images, dated 25 December 1979

Papers of the Breeding Policy Sub-Committees on Infertility, Selection and Fertility Control

Correspondence of the Breeding Policy Committee of the Zoological Society of London

Reports of the Gene Bank for the Breeding Policy Committee, later the Committee of the Wellcome Institute of Comparative Physiology, of the Zoological Society of London

Reports by the Curator of Whipsnade Park for the Breeding Policy Committee, later the Committee of the Wellcome Institute of Comparative Physiology, of the Zoological Society of London

Reports by the Curator of Mammals for the Breeding Policy Committee, later the Committee of the Wellcome Institute of Comparative Physiology, of the Zoological Society of London