Letter from Henry Francis Ainslie to Philip Lutley Sclater about plans for the erection by the Zoological Society of a new 'cats house or house for lions, tigers, and other large Felidae.'
Paul Belloni du Chaillu to Philip Lutley Sclater regarding the transport of animals he sent to the Zoological Society of London
Letter from Edward Roche to Philip Lutley Sclater regarding birds and other animals being delivered, such as black necked swans, pheasants and antelope
Sound records of wild animals recorded at the Zoological Gardens, Regent's Park and Whipsnade, with running commentary by Julian Huxley
Letter to Sir Jaber Abdullah Al-Sabah regarding details of his zoo to be published in the International Zoo Year Book and the exchange of animals
Correspondence with Rear-Admiral Christopher Bonham-Carter animals to be collected from India, Pakistan, Nepal and Iran, a request for otters and admission prices for students
Correspondence with A H D'Aeth regarding the nomination of women for membership of the Council of the Zoological Society of London, admitting guests to the Gardens, the death of his wife, the management of the animals in the Gardens and the conduct of the Society's scientific affairs, his trespass into the Lion House, his nomination to the Council and a new rebuilding fund
Correspondence with Sir Malcolm Sargent, President of the Royal Society of the Prevention of Cruelty Against Animals, regarding a visit by an RSPCA Officer to the Gardens of the Zoological Society of London, and his service on the Council
Correspondence between Paul Brodeur and Geoffrey Marr Vevers regarding the offer of Canadian wild animals to the Zoological Society of London
Correspondence with Geoffrey Marr Vevers regarding the sale of animals from Argentina and Chile to the Zoological Society of London