Proposal by Burrell Hayward & Budd, Walter Llewellyn & Sons Ltd for the refurbishment of the Penguin Pool at ZSL London Zoo

Plans for new laboratories at London Zoo

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

Letter to Julian Huxley regarding plans and designs for the Gibbon House

Letter to Major Albert Pam regarding plans and designs for the Gibbon House and a letter from Sandringham

Papers regarding the re-building programme at Regent's Park and the general development of the Gardens

Letter from Julian Sorell Huxley to Jasper Ridley regarding the plans for the new Elephant House and an approach to Lord Howard de Walden regarding a donation towards the construction

Correspondence between Julian Sorell Huxley and Tecton Group regarding the construction of the new Elephant House

Papers regarding the new Reptile House in the Gardens of the Zoological Society of London