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 with Rear-Admiral Christopher Bonham-Carter animals to be collected from India, Pakistan, Nepal and Iran, a request for otters and admission prices for students
Correspondence with Viscount Head regarding the transport of a Gibbon to Lagos, and Chimpanzees and Swans to Kuala Lumpur
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
Letters from Rajendra Mullick to David William Mitchell giving thanks for a shipment of birds shipped from the Zoological Society of London and reports on zoology, and birds and animals onboard the Prince of Wales for the Zoological Society of London
Letters from J M Davies regarding the shipment of animals to the Zoological Society of London
Letter from Frederick Dixon to Philip Lutley Sclater regarding a wild cat sent to the Zoological Society of London by Brigadier General Sir Herbert Kitchener
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
Correspondence between Brown, Jenkinson & Co Limited and Sheffield Airey Neave regarding a shipment of animals to be returned to Hamburg Zoo by the Zoological Society of London
Letter from W H Martin to the Zoological Society of London regarding the transportation of livestock