﻿SHERZER | 



GLACIAL STUDIES IN CANADIAN R0< KIES 



467 



roughly from center to center, we have the following distances ex- 

 pressed in feet: 180, 138, 135. [59, [23, 114, 1 i.|, i<>_>, 87, 102, 69, 

 84, 84, 72, 69 and j^. Upon the 26th of July, [899, George and 

 William Vaux marked the location of a certain large boulder upon 

 tins part of the Victoria and July 24, [900, they found that it had 

 moved 147 ft. This boulder was found to lie in [904 opposite the 

 ninth band in the above series, hnt somewhat to the west of the 



Fig. 72 a. — Formation of Forbes' " dirt bands," Deville glacier, Selkirks. From 

 summit Mt. Fox, looking eastward. Photographed by Arthur O. Wheeler, 100.2. 

 Canadian Topographic Survey. 



maximum line of movement, as indicated by the form of the dirt 

 bands themselves. In 1899 it should have been opposite what is 

 now the fourth hand and during the year following" have moved 

 across what would correspond with the fourth interval above or 159 

 ft. approximately. The above table of distances enables one to predict 

 the approximate movement of these boulders (hiring the next few 



