Letters from Daniel Sharpe regarding his voyage to Lisbon and the Zoological Society of London
Letters from Hugh Childers to Philip Lutley Sclater regarding expeditions by the Admiralty to observe the transit of venus
Letter from Sir Michael Foster of the Royal Society, to Philip Lutley Sclater regarding a proposal for an Antarctic expedition
Letter from T C T Reeve to Philip Lutley Sclater regarding an expedition that had been rescued, including Mr Kerr
Letters from Sir Francis John Pakenham to Philip Lutley Sclater regarding the Picomayo expedition and Mr Kerr's collection
Letters from James Thompson to Philip Lutley Sclater regarding the purchase of items for an expedition to India
Letter from John Samuel Budget to Peter Chalmers Mitchell requesting a grant from the Zoological Society of London towards the expenses of his expedition to Nigeria