Letters from William Henry Hudson to Philip Lutley Sclater regarding cuckoos, shipments of birds to the Smithsonian, Woodpeckers in Argentina, Blackbirds and other birds
Letters from John Alexander Hope to Philip Lutley Sclater regarding his subscription and election of the fellowship of the Zoological Society of London
Letters from Sir Joseph Dalton Hooker to Philip Lutley Sclater regarding collections of birds and botany
Letters from Thomas Hillier to Philip Lutley Sclater regarding complaints made about the nuisance arising from the drainage of the gardens of the Zoological Society of London into Regent's Canal
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
Letters from Berkeley Hill to Philip Lutley Sclater regarding a report of the Council of the Zoological Society of London and requesting changes in the bylaws as regards sales and special general meetings
Letters from Higginson and Vigors to Philip Lutley Sclater regarding the proposed Regent's Canal Railway
Letters from Arthur Herbert to Philip Lutley Sclater regarding the collections of Graham Kerr left on board the Bolivia
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
Letters from John Hassard to Philip Lutley Sclater regarding the fountain which Miss Burdett Coutts promised to give to the Zoological Society of London