STETSON, Francis Lynde; CAWTHORNE UNWIN, Prof. W., at al. — THE HARNESSING OF NIAGARA.

London: The Louis Cassier Co., 1899. Fifth edition, large 8vo., pp.(vi),162-384, green cloth, gilt, pictorial title, numerous b/w illustrations and figures; foxing and small tear to cloth at head and foot of spine, light rubbing to extremities, a very good copy.