570 LTTE, Jf OOKINA LOR AGL OL OG V- 
The discolored ice above this measures fifty or sixty or even 
seventy feet, while the white ice above is forty or fifty feet thick 
at the edge, and rapidly increases backwards. Measurements 
made with a binocular Locke level by sighting across the 
extreme front of the glacier from the adjacent slope showed that 
the discolored ice rose ninety-five feet above the gravel plain in 
Fic. 35.—A nearer view of a portion of the front of the Bryant glacier near the 
middle of the valley, showing the verticality of the face, the stratification of the ice, 
the insetting of the bowlders, the formation of the talus, and the smoothness of the 
valley bottom. 
front, while the white ice rose forty-five feet above this, making 
the total vertical height of the extreme front 140 feet. 
The stratification is not confined to the discolored portion, 
although it is only obscurely expressed in the white ice. Nor 
is the stratification of the two parts identical. Perhaps it may 
be appropriately said that there are two classes of stratifi- 
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