GLACIAL STUDIES IN GREENLAND. 681 
ing at short intervals, rendering the ascent of the talus slope 
imprudent, and its height was therefore not measured. This was 
by far the most notable exhibition of activity seen in connection 
with any of the northern glaciers that end upon the land. In no 
other case during our visit was the loosening and falling of débris 
more thanarare event. The material contained in this bowldery 
stratum is in part very coarse, masses of rock several feet in 
diameter being not uncommon. As in the case of the South 
Point glacier, the talus slope here conceals the base of the gla- 
cier, and it was not ascertained how much of the talus slope 
represented a subglacial accumulation and how much merely a 
superficial concealment of the glacier’s base. It was observed 
here, as in the preceding case, that the lamination of the ice 
under the talus slope stood at high angles, and had its strike 
approximately parallel to the face of the glacier, and this seems 
to be the prevalent fact in similar cases. 
The laminz of the ice are frequently twisted and distorted, 
and horizons of faulting and overthrust appear to be common, 
but they were inaccessible to close observation. The outjutting 
layers sometimes project two or three feet beyond those below. 
It would seem from the unconformity of the bent and crumpled 
layers that shearing action had taken place. 
There are no abandoned moraines on the front or sides of the 
glacier. The sides of the valley showed some freshening and 
disrupting above the present edge of the ice, indicating that it 
had recently stood somewhat higher, but beyond this there was 
no evidence of any recent difference in extension. Beyond the 
exceptionally rapid melting of the face at the time of our visit 
there were but limited signs of activity. 
T. C. CHAMBERLIN. 
