Correspondence between the Zoological Society of London and Buckingham Palace on topics such as admission tickets for the Gardens at Regent's Park and Whipsnade Park, the election of Vice-Presidents at the Zoological Society of London, the naming of the Snowdon Aviary, reports of the Annual General Meeting and Council meetings and luncheons for the Duke of Edinburgh

Records relating to the opening of enclosures and buildings including the Michael Sobell Pavilion, the Snowdon Aviary, the Elephant and Rhino Pavilion, and the Nuffield Institute