Letters from George Dawson Rowley to Philip Lutley Sclater regarding illustrations for the Transactions the Zoological Society of London and the habitat of the Plover
Letters from R W Roulston to Philip Lutley Sclater regarding antelopes and gorillas in south west Africa
Letters from Nathaniel Charles Rothschild to Philip Lutley Sclater requesting larvae of Biston Hirtaria and a live marten caught in Wales to be deposited at the Zoological Society of London
Letters from Lionel Walter Rothschild, 2nd Baron Rothschild, to Philip Lutley Sclater regarding an expedition to the Sandwich Islands, papers on birds of the Sandwich Islands, drawings of a Rail, ornithological exhibitions, the sale of a rhinoceros, his drawing of a rhinoceros to be published in the Proceedings of the Zoological Society of London, his Cassowaries at Tring, a transfer of Tragelaphus, Galapagos Tortoises, Eclectus Parrots, Lemurs and Zebras
Letter from Antony Nathan de Rothschild to Philip Lutley Sclater regarding Prince Troubetzkoy who wished to visit the Gardens of the Zoological Society of London to examine various kinds of pheasants
Letter from Alfred Charles de Rothschild to Philip Lutley Sclater requesting Sunday tickets for the Gardens of the Zoological Society of London
Letters from George John Romanes to Philip Lutley Sclater regarding research into whether mutilations are ever inherited and Weismann's theory of heredity
Letter from Edward Roche to Philip Lutley Sclater regarding birds and other animals being delivered, such as black necked swans, pheasants and antelope
Letters from George Frederick Samuel Robinson, 1st Marquess of Ripon, to Philip Lutley Sclater regarding Japanese deer for sale at the Zoological Society of London, and a deputation of Swazi Chiefs who would like to visit the Gardens of the Zoological Society of London
Letter from Edward Kay Robinson to Philip Lutley Sclater regarding membership of the Zoological Society of London