Correspondence between Rotterdam Zoo and Geoffrey Marr Vevers regarding the building of aviaries in Rotterdam Zoological Park, the offer of Mangabey Monkeys from the Zoological Society of London, and a subscription to Zoo Life

Correspondence between Rotterdam Zoo and George Soper Cansdale regarding the exchange of animals between Rotterdam Zoo and the Zoological Society of London

Report on a week-end visit to the Zoological Gardens of Antwerp, Rotterdam and Amsterdam by Dr G M Vevers