The falls of Niagara, their evolution and varying relations to the Great Lakes
Subtitle: characteristics of the power, and the effects of its diversion, 1905-6
By: by Joseph William Winthrop Spencer.
Contributors: Geological Survey of Canada.
Publisher: Geological Survey
Published: 1907
Place of publication: Ottawa
Language: eng
Number of pages: 490
Subjects: Niagara Falls (N.Y. and Ont.); Great Lakes (North America)
Notes: At head of title: Canada. Department of Mines, Geological Survey Branch.

Three folded maps inserted.