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
Letter from Sir Henry William Peek to Philip Lutley Sclater regarding a proposal to move the Zoological Society of London to the countryside
Letter from Edward Pellen, Viscount Exmouth, to Philip Lutley Sclater regarding admission to the Gardens of the Zoological Society of London
Letters from Harriett Pennell to Philip Lutley Sclater regarding Mr Pennell's subscription to the Fellowship of the Zoological Society of London
Letter from Henry Leslie Pepys to Philip Lutley Sclater regarding subscriptions to the Zoological Society of London
Letter from William Hale John Charles Pery, Earl of Limerick, to Philip Lutley Sclater regarding his tickets to the Gardens of the Zoological Society of London
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