Letter from Julian Sorell Huxley to Jasper Ridley regarding the plans for the new Elephant House and an approach to Lord Howard de Walden regarding a donation towards the construction

Correspondence between the Royal Institute of British Architects and Julian Sorell Huxley regarding a list of Rice contracts

Correspondence between the Royal Society for the Protection of Birds and Geoffrey Marr Vevers regarding the capture of nestling Blackbirds by the Zoological Society of London for export to a Canadian scientist, the Wild Birds Protection Order for Bedfordshire, Sutherland and Argyllshire

Correspondence between Samuel McGredy and Son and Geoffrey Marr Vevers, and plans regarding the planting of roses at Whipsnade

Papers on the Sanatorium and Quarantine Station at Regent's Park, including an interim financial statement

Various agreements regarding Regent's Canal including the building, repair, and maintenance of structures on the land on or adjacent to Regent's Canal

Letters from Henry Scherren to Philip Lutley Sclater regarding corrections to the proof of 'Region' and the banning of members of the public during feeding time in the Reptile House

Correspondence between the Secretary of Agriculture in South Africa and George Soper Cansdale regarding Afrikaner Cattle for Whipsnade

Pamphlet on 'Seven Years with Film and TV Cameras at the London Zoo' with a foreword by Sir Solly Zuckerman

Plans of signs at the Main Gate of London Zoo