GLACIAL SRODIES IN GREENLAND. 579 
The high specific gravity thus acquired is apparently sufficient to 
give it motion down the slope measurably independent of the 
general movement of the atmosphere, unless the latter is strong, 
hence the predominance of winds flowing down the slope of 
the ice-cap in lines normal to its border. By these snow is car- 
ried in large quantities over the moraine at the edge of the 
glacier and is lodged behind it. Thus arises an exceptional snow 
accumulation on the outer border of the moraine. This is so 
great in amount as to resist the limited melting of the summer 
and hence it persists from year to year and becomes solidified to 
a glacier-like consistency ; indeed it may be regarded as a species 
of fringing glacier. Lieutenant Peary says that it is a prevalent 
phenomenon, not only around the borders of Inglefield Gulf but 
on the northeastern side of Greenland so far as reached by him 
in 1892. This wind-drift border varies in extent from a few rods 
to half a mile in breadth at the points where I saw it. Where 
first encountered on the plateau east of the Bryant glacier, it 
only reached a short distance in front of the terminal moraine. 
(Fig. 40.) A little to the east it was found to be considerably 
wider and in an adjacent depression to extend itself as a tongue a 
mile or so down the valley.’ Fig. 41 shows a portion of this 
wind-drift border of relatively flat surface and narrow breadth, as 
seen a short distance east of the Bryant glacier. 
The acclivity of this border where I first encountered (Fig. 40) 
it was so steep as to make direct ascent difficult, but oblique ascent 
was found practicable, with a little care. On reaching its summit a 
sharply ridged moraine was found, the outer face of which was 
as steep as the material would lie. Indeed, some of the material 
appeared to have been dislodged and to have rolled down the 
_ snowy declivity. Just there the moraine only rose ten or twelve 
feet above its outer base, though elsewhere it appeared to reach 
a height of twenty or thirty feet. Beyond the sharp crest there 
was a descent of a few feet, and then an irregular surface a few 
rods in breadth. Inside this narrow and apparently shallow 
moraine and parallel to it, there ran a little brook fed by numer- 
ous streamlets from the ice-cap beyond. This brook ran along 
