Correspondence with Dr Desmond Morris regarding talapoin monkeys, the Yearbook, an Editorial Advisory Board, a Symposium and a pregnancy test for an Orangutan called Toli

Correspondence between T Harrison and George Soper Cansdale regarding an offer of Orangutans to the Zoological Society of London

Correspondence between A F R Griffin and Geoffrey Marr Vevers regarding collecting a wife for an Orangutan named Spike at London Zoo

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