Letters from Alex Comyns to Philip Lutley Sclater regarding plans to hold the Poultry Show in the grounds adjoining the Zoological Society's Gardens
Letters from W A Conklin of the Department of Public Parks in New York, to Philip Lutley Sclater regarding the birth of an elephant at a circus in Philadelphia
Letters from Joseph Cornely to Philip Lutley Sclater regarding a voyage
Letters from Sir Percy Zachariah Cox to Philip Lutley Sclater regarding specimens of Oryx Beatrix, Dik Dik skeletons, snakes and antelopes. Also letters regarding his election and membership of the Zoological Society of London
Memorandum of agreement between Hugh Cuming and the Zoological Society of London for his collection of shells. Also one letter to Philip Lutley Sclater regarding the agreement
Letters from Robert Oliver Cunningham to Philip Lutley Sclater regarding his research and other papers
Letter from Alfred Nathaniel Curzon to Philip Lutley Sclater regarding membership of the Zoological Society of London
Millard was a relative of Philip and William Sclater, Secretaries of ZSL
Letter from George Mifflin Dallas to Philip Lutley Sclater regarding the proposal for a Zoological and Botanical garden in Central Park, New York
Letters to PL Sclater asking him to correct the bird names in Darwin's new book, 'Descent of Man'.