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

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

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