Correspondence between Cecil Stanley Webb and Geoffrey Marr Vevers regarding a proposed journey by C S Webb to British Guiana, with lists of birds, mammals and reptiles of Trinidad and Tobago. Also a letter regarding Zebras and Reticulated Giraffes

Letters from Alfred Russel Wallace to Philip Lutley Sclater regarding the purchase of a joint residential estate, extracts read at meetings of the Zoological Society of London, papers for the Proceedings of the Zoological Society of London and Natural Science, his publication on 'Monkeys - their structure, affinities and distribution', a shipment of birds for the Society, improvements to the Gardens of the Zoological Society of London, notes on the Umbrella Bird, his election as a Fellow, papers on marine mammals, opinions on theories by Darwin, Birds of Paradise, and a list of butterflies of Costa Rica

Correspondence between James Thompson, Head Keeper at London Zoo, and David William Mitchell regarding the expense to carry out the experiment of rearing mammals and birds in the Hill Country for transmission to Enland, and the transmission of a collection of Himalayan pheasants to the Zoological Society of London

Correspondence between Brian A Stuart and Geoffrey Marr Vevers regarding an agreement to collect mammals, birds and reptiles in British Guiana

Correspondence between C R Stoner and George Soper Cansdale regarding an offer to collection mammals and birds for 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

Correspondence with Geoffrey Marr Vevers regarding queries about mammals such as an offer of a Lioness for mating, the measurements of Camels, Toto the Lesser Kudu, Mink breeders, Monkeys from East Africa, Quaggas, the gestation period of a Giraffe, Horned Hares, and domesticating the Paca and Capybara

Letters from Sir Harry Hamilton Johnston to Philip Lutley Sclater regarding posts open at the Foreign Office for the consular department, the Kilimanjaro Expedition, papers on birds, mammals and insects from Kilimanjaro, medals to be awarded for services to zoology, animals and specimens sent by Mr Johnston to the Zoological Society of London, drawings of animals, a visit to the gardens of the Zoological Society of London by the Katikiro of Uganda and his party, and his election as a member of the Council and attendance at meetings, and the Zoological Club

Correspondence between James & Hodder and Geoffrey Marr Vevers regarding the collection of mammals and birds from the Philadelphia Zoo which arrived on the S.S.Sofie Bakke for the Zoological Society of London

Letter from, Bruce S Ingram to Philip Lutley Sclater requesting an illustration in the Illustrated London News of the mammal newly discovered by Sir Harry Johnston