580 THE JOURNAL OF GEOLOGY, 
between the moraine and the ice-cap for some distance to the 
eastward until it found a low point in the moraine, across which 
it flowed and became lost in the snowy slope fronting the 
moraine. It doubtless represents a mode of drainage of some 
prevalence during the glacial period. Beyond this infra-morainic 
brook the ice rose with a moderate slope up to the summit plane 
of they ice-cap. 
On neither of my two visits to the ice-cap at this point did 
Fic. 42.—A portion of the Redcliff ice-cap seen from a point on the ice-cap look- 
ing westwardly, showing the terminal moraine at the left with a glimpse of the snow 
border beyond and the smooth summit lines of the plateau in the distance. 
time permit any considerable ascent of its border. It was esti- 
mated to rise one or two thousand feet, and this accords with 
the estimate of Lieutenant Peary formed on better grounds. 
The surface of the ice-cap, except in the immediate vicinity of 
the frontal moraine, was found to be entirely free from débris, 
except atmospheric dust lodged upon it. No bowlders what- 
ever were seen upon it. Crevasses were absent from the border 
of the ice-cap, so far as it was traversed, with the exception of 
mere cracks which did not appear to descend deeply, as they did 
not absorb the streamlets running over the surface. Dust wells 
and dirt holes were abundant, usually reaching six or eight 
inches in depth. 
It will be observed that the terminal moraine lay between the 
wind-drift border and the ice-cap. We were very much struck 
