John Ferriar.
An Essay towards a Theory of Apparitions.
REFERENCES TO:
Sydney Smith to John Archibald Murray, 18 August 1813 in A Memoir of the Reverend Sydney Smith. By his Daughter, Lady Holland. With a
Selection from his Letters, edited by Mrs. Austin. 2 vols (London: Longman, Brown, Green, and Longmans, 1855).