8o8 



ROLLIN D. SALISBURY 



force with which the water shot out, in this particular instance, 

 indicated plainly enough that it was under great head. In 

 this case the stream was very red, due to the fact that it con- 

 tained much sediment, or rock flour, arising from the comminution 



'*>*v. 



Fig. 32. End of the large glacier on the south side of Olriks Bay. Englacial 

 stream issuincf. 



of the red rock over which the ice had moved. Since the stream 

 issued from the ice at a level quite above any considerable 

 amount of debris, it would appear that somewhere in its course 

 the water must have been at a relatively lower level in the ice, 

 flowing, throughout a portion of its course, sufificiently near the 

 bottom of the glacier to acquire the silt which it contained. 



That englacial water sometimes does flow under great pres- 

 sure was shown by a phenomenon seen on one of the glaciers 

 near Godhavn on the island of Disco. Here from the upper 



