Letters from Arthur Gardiner Butler to Philip Lutley Sclater regarding attendance at committee meetings and illustrations for publications
Copies of letters regarding the drainage system of the gardens of the Zoological Society into Regent's Canal, with accompanying map
Letters from Gambier Bolton to Philip Lutley Sclater regarding alterations and additions to the gardens of the Zoological Society of London due to the decline in visitors
Letters from Abraham Dee Bartlett to Philip Lutley Sclater regarding the doors to the new elephant house, animal food consumption, the female rhinoceros, the mounted specimen of a young gorilla, authorisation to sell Alice the elephant to Mr Barnum, and the theft of an owl
Letters from Herbrand Arthur Russell to Philip Lutley Sclater regarding the purchase of animals, his election as member of the council of the Zoological Society, his attendance at meetings and the appointment of a veterinary surgeon at the Zoological Society
Letters from Frank Evers Beddard to Philip Lutley Sclater regarding the cause of death of a giraffe in the Zoo, his appointment as Vice-Secretary, meetings of the flower memorial committee, the death of a calf of Sanger's elephant, the death of the Nasalis larvatus, the purchase of a Langur, a collection of plants, and his position as Prosector