The Cañons of the Colorado
[Compiled from the Report of Prof. J. W. Powell, Geologist, in charge of the G. and G. Survey of the Territories]
[Compiled from the Report of Prof. J. W. Powell, Geologist, in charge of the G. and G. Survey of the Territories]
A popular lecture proving that our globe neither rotates upon its axis n., around the sun.—Delivered at Berlin
Delivered at BeUevue Hospital Medical CoUege, New York.