General correspondence with Sir Martin Wyatt Holdgate regarding his memoirs, recognition of Solly Zuckerman, foot and mouth disease and the death of Sir William Henderson

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

Letter from George Bentham to Nicholas Aylward Vigors regarding the request of a room at the Horticultural Society for the monthly meeting of the Zoological Society of London

Records relating to the Institute of Zoology and ZSL's scientific endeavours

Correspondence with the New York Zoological Society regarding the diet of Humming Birds from Ecuador

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

Correspondence with the Royal Zoological Society of Scotland regarding anti-venine for the treatment of snake bites, hairy frogs, and the Aard Wolf

Correspondence with Peter Scott and the Wild Fowl Trust regarding the exchange of animals, and the Waterfowl Registry

Correspondence regarding collectors of animals

Correspondence between Sir Sidney Frederick Harmer and Joan Procter regarding Procter's remuneration and the Natural History Museum, articles in the press about Procter, a joint paper published by Procter and Dr Malcolm Smith, and Procter leaving the Natural History Museum