Correspondence between the Societe Royale de Zoologie D'Anvers in Antwerp and Geoffrey Marr Vevers regarding a lioness called Raie which was sent by the Zoological Society of London, and a Chimpanzee which was sent by the Societe Royale de Zoologie D'Anvers to the Zoological Society of London

Correspondence between Antwerp Zoo and Geoffrey Marr Vevers regarding an exchange of animals between the Zoological Society of London and Antwerp Zoo, and a paper called 'Notes about our attempt to present snakes separated from the public by an invisible obstacle'

Correspondence between Basel Zoo and Geoffrey Marr Vevers regarding an exchange of Wallabies and Hamsters

Correspondence between the Zoo-Centre in Brussels and Geoffrey Marr Vevers regarding the transfer of birds and Wallabies

Correspondence between Prague Zoo and Geoffrey Marr Vevers regarding a pair of Bennett's Wallabies which were sent to Prague Zoo by the Zoological Society of London

Letter from Antwerp Zoo, with papers on Consideration Upon the Necessity of Coordinating All Observations Taken on Okapis Living in Captivity, and Ways in Exhibiting Birds in Cages