The Northern Aviary at London Zoo, widely known as the Snowdon Aviary, was built between 1962-1964 and opened in 1965. Lord Snowdon was the designer of the Aviary.
Letters from David Seth-Smith to Julian Sorell Huxley regarding plans for the proposed new Elephant House and meetings of the Elephant House Committee
Plans of signs at the Main Gate of London Zoo
Pamphlet on 'Seven Years with Film and TV Cameras at the London Zoo' with a foreword by Sir Solly Zuckerman
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