GLACIAL STUDIES IN GREENLAND. ens, 
almost all elevations, and from a height of 1500 feet upward 
snow spread over the larger portion of the surface of the glacier ; 
large depressions had indeed been made in it by the heat of the 
sun, and here and there it was completely removed. Occasional 
snows fell during the latter part of August and permanent snow 
was to be expected in September. The amount of surface wast- 
age which the season permitted could not, therefore, be very 
great, and the inactivity of the glacial mass, as shown by its 
Fic. 22.—Dust wells on the Igloodahomyne Glacier; taken with the camera 
held directly above them. The largest are about two inches in diameter. 
border, is in signal harmony with this limited wastage, which is 
the factor over against which its motion balanced in determining 
the status of the mass. It would appear that the wastage is as 
notably slight as the motion. It is doubtless unsafe, however, 
to urge these considerations very far, because the season was 
probably unusually adverse. 
At the time of our visit the melting of the surface was mark- 
edly rapid, and swift little rills streamed down the slopes of the 
glacier in miniature channels cut in its surface. The relative 
absence of crevassing permitted these to run long courses, and 
by joining each other to form considerable streamlets near the 
