Correspondence with Lord Hurcomb of the International Council for Bird Preservation, British Section, regarding the question of a national bird
Letters from William Henry Hudson to Philip Lutley Sclater regarding cuckoos, shipments of birds to the Smithsonian, Woodpeckers in Argentina, Blackbirds and other birds
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 Sir Joseph Dalton Hooker to Philip Lutley Sclater regarding collections of birds and botany
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 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
Correspondence between the Zoo-Centre in Brussels and Geoffrey Marr Vevers regarding the transfer of birds and Wallabies
Letters from Joseph Henry of the Smithsonian Institute, to Philip Lutley Sclater regarding botanical specimens from the Zoological Society of London and specimens of South American birds to be named and described for the Smithsonian Institute
Correspondence with Lady Zoe Hart-Dyke of Lullingstone Silk Farm Ltd, regarding the rearing of Emus, the sale of Peafowl, and Lyre-Birds
Correspondence regarding a request for birds and mammals from Africa for the Zoological Society of London