Articles of Agreement and correspondence between John Warwick with the Zoological Society of London and the Earl of Derby regarding a voyage to Egypt and Nubia to procure live animals and birds for the Zoological Society of Lonon
Letters from James Thompson to Philip Lutley Sclater regarding the purchase of items for an expedition to India
Letters from Daniel Sharpe regarding his voyage to Lisbon and the Zoological Society of London
Letter from Robert Falcon Scott to Philip Lutley Sclater regarding assistance with the National Antarctic Expedition
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 T C T Reeve to Philip Lutley Sclater regarding an expedition that had been rescued, including Mr Kerr
Letters from Sir Thomas Townsend Pears to Philip Lutley Sclater regarding an Abyssinian expedition, during which Mr William Jesse collected about 1250 specimens
Letters from Sir Francis John Pakenham to Philip Lutley Sclater regarding the Picomayo expedition and Mr Kerr's collection
Letters from Josiah McGregor to Philip Lutley Sclater regarding a Pilcomayo expedition
Letters from Arnold Jerome Matthews to Philip Lutley Sclater regarding an expedition to the Gabon for the purpose of procuring some young living specimens of the gorilla, then available to purchase by the Zoological Society of London