Author: SPENCER, Joseh William Winthrop (1851-1921).:
Title: The Falls of Niagara. Their evolution abnd varying relations to the Great Lakes; characteristics of thr power, and the effects of its diversions.
Description: Ottawa: Department of Mines, Geological Survey Branch, 1907. 8vo. Pp. xxxii,490, frontisp., 43 plates and maps (some fold.), 30 illus. in text, 1 large fold. map at end, index. Private cloth, orig. printed wrappers bound in. Front cover a bit stained, contents very good.

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