Correspondence with David Attenborough regarding the diet of Giant Pangolins, a Zoo Quest trip to Paraguay and a request for supplies, a collection of birds, Gerald Durrell's hopes to set up a zoo in Jersey, and two bottle-nosed Dolphins that were caught in the Adriatic and taken to Plymouth by the BBC Natural History Unit

Correspondence with Lady Olive Bailie regarding her trip to London Zoo and a tour of the birds, and invitation to see her collection of birds, and an offer of Masked Lovebirds for Lady Bailie

Correspondence with Gerald Durrell regarding animals to be deposited at London Zoo, the exchange of Gough Island Moorhens for a pair of Rheas, a publication by the International Union for the Preservation of Nature on extinct and vanishing birds, a trip to Argentina, the diet of Giant Pangolins, and the care of Notornis

Correspondence with Peter Scott of The Severn Wildfowl Trust regarding Whoopers for the Princess Royal, a Hawaiian duck, a Black Swan from Sir Winston, an exchange of ducks, methods of preventing birds' flight, Greylag Geese, the Scientific Advisory Committee of The Severn Wildfowl Trust, a Brazilian Teal duck brought by Gerald Durrell, tickets for admission to London Zoo and labels

Correspondence regarding a request for birds and mammals from Africa for the Zoological Society of London

Correspondence with Lord Hurcomb of the International Council for Bird Preservation, British Section, regarding the question of a national bird

Correspondence with Julian Huxley regarding birds to be delivered to the Royal Society along with slides for a lecture he gave

Correspondence with Sir Arthur Landsborough Thomson regarding the Secretaryship and the need for an Honorary Secretary, the replacement of the term Superintendent with Director, Scientific Meetings, Scientific Fellowship, the naming of Vice-Presidents of the Zoological Society of London, statements to the press, committees, the stocking of antelopes, a grant from the Nuffield Foundation to maintain a Nuffield Unit of Tropical Animal Ecology at Cambridge, a memorandum by Landsborough Thomson on the Royal Society for the Protection of Birds, the Society for the Promotion of Nature Reserves and the Council for Nature, a memorandum on a Fresh Proposal for Integration of Conservation Bodies, and the introduction of an oceanarium at London Zoo