Letters from Sir Francis John Pakenham to Philip Lutley Sclater regarding the Picomayo expedition and Mr Kerr's collection
Correspondence between G North Peal and Philip Lutley Sclater regarding the death of the previous Secretary of the Zoological Society of London, David William Mitchell
Letters from Harriett Pennell to Philip Lutley Sclater regarding Mr Pennell's subscription to the Fellowship of the Zoological Society of London
Letters from James Thompson to Philip Lutley Sclater regarding the purchase of items for an expedition to India
Letters from Arthur Walden, Marquess of Tweedale, to Philip Lutley Sclater regarding an offer from the Duke of Wellington of two male llamas, Fellowship of the Zoological Society of London, specimens of an insect, and subscriptions to the Society
Letters from Wilhelm Carl Hartwig Peters of the Museum Regium Zoologicum, to Philip Lutley Sclater regarding Huxley's paper, a sketch of the plan of the monkey house, plates, specimens in his possession, and his memoirs
Letters from Thomas Littleton Powys to Philip Lutley Sclater regarding eagles and newts in his possession
Letters from Sir Edward John Poynter to Philip Lutley Sclater regarding tickets of admission to the Gardens of the Zoological Society of London
Letters from James Purdey to Philip Lutley Sclater regarding his tenancy, and an award from the Zoological Society of London to James Purdey
Letters from William Nation to Philip Lutley Sclater regarding his discoveries