J W. 1851 1921 Spencer: Полный список книг

J W. 1851 1921 Spencer: список всех книг (3)

Discovery of the preglacial outlet of the basin of Lake Erie into that of Lake Ontario ; with Notes on the origin of our lower Great Lakes - J W. 1851-1921 Spencer

Discovery of the preglacial outlet of the basin of Lake Erie into that of Lake Ontario ; with Notes on the origin of our lower Great Lakes

J W. 1851-1921 Spencer
The falls of Niagara: their evolution and varying relations to the Great Lakes; characteristics of the power, and the effects of its diversion - J W. 1851-1921 Spencer

The falls of Niagara: their evolution and varying relations to the Great Lakes; characteristics of the power, and the effects of its diversion

J W. 1851-1921 Spencer
The duration of Niagara Falls: and the history of the Great Lakes - J W. 1851-1921 Spencer

The duration of Niagara Falls: and the history of the Great Lakes

J W. 1851-1921 Spencer