List of American zoos by A Lindsay; Report of a visit to New York and Chicago (1936); 'Notes on visits to some foreign zoos, 1934 and 1935' by Huxley (covering New York Bronx, Philadelphia, Washington, Paris Vincennes, Hamburg, Berlin, Munich Hellabrun, & Frankfurt); extract from report on the British Colonial Exhibit, World's Fair, New York, 1939; Report on visit to Austria and Germany by D Seth Smith (c1937); Report on a visit to the Zoological Gardens at Antwerp, Rotterdam and Amsterdam (1935); Report on a visit to France (1938); letter from Chalmers Mitchell to the Directors of Zoological Gardens in Germany, introducing Huxley, 1935; handwritten notes on zoos; notebook; 'La Reproduction des Animaux Sauvages en Captivite' by A Urbain; Report on visit to Brookfield Zoo (1940); guide to Internationalen Jagdaustellung, Berlin, 1937.
Correspondence between L Rule and George Soper Cansdale regarding the return of animal from the Zoological Society of London to Germany
Letter from Sheffield Airey Neave to the Rt Hon H B Hynd of the Control Office for Germany and Austria regarding an instalment of animals sent to the Zoological Society from Germany
Letters from L M Flewin to the Food and Agriculture Division in Germany regarding the post mortem results of Racoons taken from Hanover Zoo, and a post mortem certificate for a Wild Horse
Letter from N Funck of the Zoological Gardens in Cologne, to Philip Lutley Sclater
Colour negatives of views of Stuttgart, Frankfurt, Jakarta and Bogor Zoos
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
Correspondence with E H Tong regarding the exchange of Red-breasted Geese, and the measurements of the Elephant called 'Carla' which was being returned to Hanover
Report by Peter Chalmers Mitchell on a visit to Brussels, Berlin and Dresden in December 1913 to examine new Aquaria
David Seth Smith attended, as delegate of the Zoological Society and the Society for the Preservation of the Fauna of the Empire, the Meeting of the European Continental Section of the International Committee for Bird Preservation held in Vienna