Early papers regarding the Aquarium at London Zoo, including correspondence, price lists, reports on visits to Hamburg, Berlin, Brussels and Dresden

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 Peter Chalmers Mitchell on a visit to Brussels, Berlin and Dresden in December 1913 to examine new Aquaria