Correspondence and papers relating to the death of B J Radford, a keeper in the Lion House
Letters from Sir Peter Chalmers Mitchell to Joan Procter regarding a meeting of the Aquarium Committee and Procter's assistance in designing and making models of the rockwork decoration for the tanks
Letters from Lionel Nathan de Rothschild to Peter Chalmers Mitchell regarding his membership of the Zoological Society of London
Letters from Edwin Linley Sambourne to Peter Chalmers Mitchell regarding the Bear Pit at the Gardens of the Zoological Society of London and his admission to the Gardens
Letters, newspaper clippings and will of Herbert Spencer. The Zoological Society of London was one of 12 scientific societies which were beneficiaries of his estate
Letters from Bennet Burleigh to Peter Chalmers Mitchell regarding two young ostriches and a squirrel from Somaliland to be gifted to the Zoological Society of London
Letters from Lionel Walter Rothschild to Peter Chalmers Mitchell regarding the preparation of food for Rheas and Emus and agreeing that Mr Boulanger can take the Chimpanzee home
Letters from Herbrand Russell, 11th Duke of Bedford, to Peter Chalmers Mitchell regarding animals available for purchase by the Zoological Society of London, including a zebra and a Cow Aurox from Hagenbeck at Hamburg