Notes by Julian Huxley on visits to the Zoological Gardens at New York (Bronx Park), Philadelphia, Washington DC, Paris (Vincennes), Hamburg, Berlin, Munich (Hellabrunn) and Frankfort, also the Aquarium at Chicago

Draft notes by Julian Huxley on visits to the Zoological Gardens at New York (Bronx Park), Philadelphia, Washington DC, Paris (Vincennes), Hamburg, Berlin, Munich (Hellabrunn) and Frankfort, also the Aquarium at Chicago

Memorandum regarding periods of fertility and the fertility rates of the various species of mammals on Exhibition at the Gardens of the Zoological Society of London since 1826

Correspondence between Mrs F Edwards and Julian Sorell Huxley regarding principles of keeping animals in captivity

Papers regarding the Great Ape Breeding Colony at ZSL London Zoo

Plans showing proposed alterations to the Great Ape Breeding Colony

Letter from the Deputy High Commissioner of Australia to Geoffrey Marr Vevers regarding a couple who would be capable of looking after the breeding of various kinds of rare birds on a property recently presented to the Zoological Board of Victoria

Correspondence between Copenhagen Zoo and Geoffrey Marr Vevers regarding a visit to London and Whipsnade Zoos, with arrangements regarding the transfer of animals

Correspondence between G Kenneth Whitehead and George Soper Cansdale regarding the stock of Muntjac at London and Whipsnade Zoos

Two lists: birds and quadrupeds, 29 April 1851 to 29 April 1852. Signed by James Hunt, Head Keeper