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

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

Letters from A de Borre of the Musee Royal d'Histoire Naturelle Brussels, to Philip Lutley Sclater

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