Letter regarding an exchange of animals between the Zoological Society of London and Montevideo Zoo

Correspondence with the New York Zoological Society regarding the diet of Humming Birds from Ecuador

Correspondence between Alberto O E de Souza Aranha and Geoffrey Marr Vevers regarding a shipment of Tapirs from Rio De Janeiro

Letters from Lionel Walter Rothschild, 2nd Baron Rothschild, to Philip Lutley Sclater regarding an expedition to the Sandwich Islands, papers on birds of the Sandwich Islands, drawings of a Rail, ornithological exhibitions, the sale of a rhinoceros, his drawing of a rhinoceros to be published in the Proceedings of the Zoological Society of London, his Cassowaries at Tring, a transfer of Tragelaphus, Galapagos Tortoises, Eclectus Parrots, Lemurs and Zebras

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

Correspondence between the United Kingdom River Plate Conference and Geoffrey Marr Vevers regarding animals bring brought back from the Falkland Islands and South America for the Zoological Society of London