Letters from Gaston-Francois de Witte to Joan Procter regarding her work at the British Museum and papers recommended by Procter
Letters from Franz Werner to Joan Procter regarding specimens of snakes, an exchange of papers, volumes by Mr Boulenger, a gift of newts, a new frog in London Zoo, and Procter's position at the British Museum
Correspondence between United States Lines and Geoffrey Marr Vevers regarding the transport of animals and museum specimens to Philadelphia on the Russell R. Jones
Letter from the Secretary of the United Services Museum, accompanying two specimens of birds killed in Mexico and of a Scoter killed at Southampton. The letter asks the Zoological Society of London to inspect and return them
Letter to Dr A Tindell Hopwood of the British Museum (Natural History) inviting him to act as Honorary Editor for a further volume of Nomenclator Zoologicus
Letters from Carl Jacob Sundevall, Director of the Royal Museum Stockholm, to Philip Lutley Sclater regarding specimens found in the Museum such as Galapagos birds
Letter from Karl Schmidt, Assistant Curator of Reptiles and Amphibians at the Field Museum of Natural History, regarding Procter leaving the British Museum and accepting an appointment at the Zoological Society of London
Letters from Edmund Ruppell, a German citizen from Frankfort, giving appreciation for receipt of his diploma as a foreign member of the Zoological Society of London, Proceedings of the Zoological Society of London, comments on his discoveries such as a new variety of Gasteropod, a list of mammals and birds 'our museum wishes to get from England' receipt of the 1934 Proceedings, the first volume of museum catalogue, and his wish to complete the exchange
Letters from Edward Pierson Ramsay, Curator of the Australian Museum, to Philip Lutley Sclater regarding the transportation of a ceratodus to the Zoological Society of London