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
Letters from Charles Augustus Murray to David William Mitchell regarding the shipment of animals to the the Gardens of the Zoological Society of London from Egypt, with receipts
Letter from Edward Roche to Philip Lutley Sclater regarding birds and other animals being delivered, such as black necked swans, pheasants and antelope
Letters from Alexander Miller of the Zoological Gardens regarding a Chinese Pheasant which escaped and had been running in Park Street, Camden Town, an escape from the Dove House, the removal of an oak fence on the southern boundary, the health of a Rhinoceros, the Society's Cashmere Goat, his visit to City Road Basin, the purchase of a Chimpanzee, a visit by the Queen to the Gardens, a stillborn Rhesus Monkey, dimensions of the back of a new den for the Elephant and Rhinoceros, the cost of laying the floor of the Elephant and Rhinoceros House, the death of a Chimpanzee and the return of John Woodbridge with Cranes and Leopards
Letters from Baring Brothers and Co. to Philip Lutley Sclater regarding the arrival of the ship Renshaw at St Katharine's Docks with the animals shipped by Mr Du Chaillu
Letter from Georgina Hamilton Goodfellow to Philip Lutley Sclater regarding her husband, Mr Hamilton Goodfellow, who was detained on the charge of having stolen a bird from London Zoo
Letter from Walter Hamilton Goodfellow to Philip Lutley Sclater, apologising for stealing a bird from London Zoo
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