Correspondence between Antwerp Zoo and Geoffrey Marr Vevers regarding an exchange of animals between the Zoological Society of London and Antwerp Zoo, and a paper called 'Notes about our attempt to present snakes separated from the public by an invisible obstacle'

Letter from Antwerp Zoo, with papers on Consideration Upon the Necessity of Coordinating All Observations Taken on Okapis Living in Captivity, and Ways in Exhibiting Birds in Cages

Letter from Arthur F Astley to Philip Lutley Sclater regarding the subject of reptile feeding at the Zoo

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

Letter from the Curator of The Auckland Zoological Park to George Soper Cansdale regarding an offer of a trio of Keas to the Zoological Society of London

Correspondence between Auckland Zoo and George Soper Cansdale regarding a shipment of Keas to the Zoological Society of London. Also, a paper by the City of Auckland on Conditions of Appointment of Curator, Auckland Zoological Park

Correspondence between Baghdad Zoo and Geoffrey Marr Vevers regarding the proposed opening of a Zoological Garden in Baghdad

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

Letters from Robert Ball, Secretary of the Royal Zoological Society of Ireland, to John Barlow regarding the exchange of animals with the Zoological Society of London

Letters from Baring Brothers and Co. to Philip Lutley Sclater regarding the arrival of the ship Renshaw at St Katharine's Docks with the animals shipped by Mr Du Chaillu