REVELATIONS OF THE Y0SEM1TE VALLEY 



75 



North Dome of Concentric Granite Formation 3,600 Feet Above Merced River. 



Glaring, that "there is no reason to suppose, or at least no proof, that 

 glaciers have ever occupied the valley or any portion of it. ... A more 

 absurd theory was never advanced than that by which it was sought to 

 ascribe to glaciers the sawing out of these vertical walls and the round- 

 ing of the domes." At the same time, Professor Whitney was thor- 

 oughly convinced that the Tuolumne watershed to the north had been 

 entirely filled by a gigantic glacier which he agreed had hewn out the 

 Hetch Hetchy Valley, a miniature Yosemite situated twenty miles 

 northwesterly and three hundred feet lower in altitude. 



An able ally who came to the aid of Professor Whitney was the noted 

 glacialist, Israel C. Eussell. Detailed by the United States Geological 



