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YEARBOOK, PUBLIC MUSEUM, MILWAUKEE 



[Vol. IL 



another and in that way traverse the glacier. Such progress is very- 

 uncertain and is liable to be cut off at any time by the presence of a 

 crevasse which can not be crossed. However, it is only by traveling 

 over this rough ice, that an intimate acquaintance with the glaciers and 

 the crevasses can be gained. An idea of the roughness of the ice can 

 be gained to some degree by figure 40, which shows a view looking 



Fig. 41. -^Bringing the model into camp. Showing the 

 method employed in "packing" equipment and materials 

 in the Nisqually Glacier work. 



down on Mr. Teller sitting astride a sharp ice ridge which is itself 

 some distance down in a large crevasse. Oii some parts of the glacier, 

 the surface drainage is considerable, and as these rivulets reach the 

 crevasses, they plunge into them in waterfalls, which seem especially 

 noisy in that otherwise noiseless region. 



