Correspondence between Lord John Sanger & Sons, Limited and A Thompson, Assistant Superintendent at the Gardens of the Zoological Society of London regarding special side shows with extra admission, and an elephant to be sent to the Zoo

Letter from the Societe Royal d'Histoire Naturelle de Gand to David William Mitchell regarding the payment for delivery of animals

Copies of letters regarding the drainage system of the gardens of the Zoological Society into Regent's Canal, with accompanying map

Letters from Alexander Agassiz to Philip Lutley Sclater about the collections of British Museum and Jardin du Plantes, Paris

Letter from Henry Francis Ainslie to Philip Lutley Sclater about plans for the erection by the Zoological Society of a new 'cats house or house for lions, tigers, and other large Felidae.'

Letters from James Anderson regarding a proposed Zoological Garden in Edinburgh, with a reply from Philip Lutley Sclater

Letters from Thomas George Baring to Philip Lutley Sclater regarding the Zoological Gardens at Calcutta

Letters from Gambier Bolton to Philip Lutley Sclater regarding alterations and additions to the gardens of the Zoological Society of London due to the decline in visitors

Letters from Arthur E Brown of the Zoological Society of Philadelphia, to Philip Lutley Sclater regarding the birth of an African elephant

Letter sent by G P Clifford to Philip Lutley Sclater regarding birds sent by the Otago Acclimatisation Society to the Zoological Society of London