Correspondence between the Zoo-Centre in Brussels and Geoffrey Marr Vevers regarding the transfer of birds and Wallabies

Letters from Sir Clement Lloyd Hill to Philip Lutley Sclater regarding the way in which animals and birds were shot down in new countries, and draft reply concerning papers put out by the Zoological Society of London for the protection of birds

Notes on Mammals of Tibet, 1842; New genus of Birds, 1845; Catalogue of Birds of Nepal, 1847; Description of Wild Ass and Wolf of Tibet, 1846; Wild Sheep in Himalayas, 1831; Tame Sheep and goats in Himalayas and Tibet, 1847; Articles in Journal of Asiatic Society of Bengal, 1847

Letters from Sir Joseph Dalton Hooker to Philip Lutley Sclater regarding collections of birds and botany

Correspondence between T Horwood and George Soper Cansdale regarding a shipment of birds and animals from the Gold Coast for the Zoological Society of London

Letters from William Henry Hudson to Philip Lutley Sclater regarding cuckoos, shipments of birds to the Smithsonian, Woodpeckers in Argentina, Blackbirds and other birds

Letter from William Henry Hudson to Peter Chalmers Mitchell enclosing a copy of Birds of La Plata for the Library of the Zoological Society of London

Correspondence with Lord Hurcomb of the International Council for Bird Preservation, British Section, regarding the question of a national bird

Correspondence with Julian Huxley regarding birds to be delivered to the Royal Society along with slides for a lecture he gave

Letters from Thomas Henry Huxley to Philip Lutley Sclater asking about available birds for dissection, meetings of the Council of the Zoological Society of London, proofs and woodcuts for a paper, specimens of birds and the Marine Biological Association