Plans for new laboratories at London Zoo

Correspondence, plans and minutes of meetings of the Nuffield Institute of Comparative Medicine

Engineers report on the state of the well and supply of water in the Gardens of the Zoological Society of London

Remarks by Abraham Dee Bartlett on Mr Gambier Bolton's paper about suggested improvements at the Gardens of the Zoological Society of London

Copies of letters regarding the drainage system of the gardens of the Zoological Society into Regent's Canal, with accompanying map

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 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

Papers on the proposed new Elephant House

List of costs of major building works undertaken by the Zoological Society of London in the last ten years