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Plan showing the details of the base and base wall of the Raven's Cage at London Zoo

Documents relating to the development of Whipsnade

Memorandum by the Secretary on the development of Whipsnade

Papers regarding a development programme for Whipsnade

Correspondence between the Duke of Devonshire and Sheffield Airey Neave regarding rations of food, and a proposed suspension of Ordinary General Meetings of the Council

Plans showing the diagrammatic layout of ZSL London Zoo

Diary of James Thompson, listing general payments and accounts

Descriptions of birds seen

Letter from Dick to Joan Procter, thanking her for the monograph and other matters