Edward George Boulenger spent three weeks in America where he visited and studied the aquaria, zoological parks and museums in New York and Chicago
Early papers regarding the Aquarium at London Zoo, including correspondence, price lists, reports on visits to Hamburg, Berlin, Brussels and Dresden
Memo on the subject of Dr Allen's letter dated July 7th 1930 by the Director of the Aquarium
Letters from Edward George Boulenger to Joan Procter regarding Salamander larvae, attendance at Zoological Society of London Scientific Meetings, the purchase of alligators, the transformation of axolotl, snakes for sale, a reference to a crab-eating frog, her exhibition of the batrachia in the public galleries, and the death of reptiles deposited by Joan Procter
including many of his own articles
Report by E G Boulenger on a a visit to Vienna, Berlin and Amsterdam with the special object of visiting the Biologische Versuchsanstalt in Vienna and the Aquarium in Berlin
Report by E G Boulenger on stocking the Aquarium with marine specimens
Memorandum by E G Boulenger, Director of the Aquarium, on a suggested branch aquarium at Weymouth