Correspondence between the Royal Society of Ireland and George Soper Cansdale regarding an exchange of Brown Pelicans and Canadian Black Bear cubs for Giraffes or a Camel

Correspondence with the Royal Zoological Society of Ireland regarding the transportation of part of the brain of a Canada Lynx to the Zoological Society of London, the transportation of cormorants, and the use of copper sulphate to keep Sea Lion ponds free from algae

Letter from the Royal Zoological Society of London regarding any difference in the height of an Elephant when standing and when lying on its side. Also a paper on 'The Birth of an Asiatic Elephant' by Dr Ellen M Hindle (based on a report by Dr Lamberto Crudi, Director, Zoological Gardens, Rome)

Correspondence between the Royal Entomological Society of London and the Zoological Society of London regarding the election of the President of the Royal Entomological Society as an ex officio honorary member of the Zoological Society

Report on the Marine Biological Association of the United Kingdom in Plymouth

Correspondence with C E Ranson of The Nature Conservancy regarding the third London airport

Correspondence between the Sir Martin Wyatt Holdgate and Fellows of the Zoological Society of London

Policy papers by the President of the Zoological Society of London, Sir Martin Wyatt Holdgate

Circulars, printed papers and correspondence of Dr Bidder, mainly concerning the Meetings of British Zoologists, the forming of the Association of British Zoologists, and urging the split of the British Museum and the Natural History Museum. Most are from 1920's and are unordered. Includes letters from Prof. Balfour-Browne, P Chalmers Mitchell and E Ray Lankester, etc

Letters concerning the Symposium held on 11-12 June 1987; correspondence with William Timym about his bronze Oryx model