Letters from Carl Jacob Sundevall, Director of the Royal Museum Stockholm, to Philip Lutley Sclater regarding specimens found in the Museum such as Galapagos birds
Letter from Sir John Bland Sutton, Pathologist, to Philip Lutley Sclater requesting extra tickets for entry to the Zoological Society of London to perform post mortem inspections
Letter from Cuthbert Edward Swan to Philip Lutley Sclater regarding his ticket for entrance to the Gardens of the Zoological Society of London
Letter from John Frederick Joseph Sykes of Saint Pancras Health Department, to Philip Lutley Sclater regarding the drainage of the Gardens of the Zoological Society of London
Letter from Sir James Emerson Tennent to Philip Lutley Sclater regarding the managers of the Central Bank in New York who wished to obtain information respecting the coot
Letter from J H Thomas to Philip Lutley Sclater regarding the sale of a 'Coolakamba' in his possession
Letter from Michael Rogers Oldfield Thomas of the British Museum (Natural History) to Philip Lutley Sclater regarding the skin of a giraffe
Letter from William Thomson, Baron Kelvin, to Philip Lutley Sclater recommending Miss Jackson to be admitted to the Gardens of the Zoological Society of London to paint
Letters from Sir Charles Wyville Thomson to Philip Lutley Sclater regarding entrance to the Gardens of the Zoological Society of London, elections to the Council and his description of a porcupine
Letter from Richard Henry Tidswell to Philip Lutley Sclater requesting to see the snakes fed at the Gardens of the Zoological Society of London