206 Glaciation of Mountains^ Etc. — W.'Vphani. 
striae on the mountains of New Hampshire and Massachusetts. 
. . . Near the south foot of Mt. Franklin is another example 
of the embossed rocks with bowlders. . . . Finally, at the 
south foot of Mt. Washington, near a small pond called Lake of 
the Clouds, is a third example of the roches moutonnees. It 
is less distinct than at the other localities, as the rock here is 
more broken up by frosts ; still it is impossible for a practised 
eye not to recognize them. And it ought to be stated that 
here it is the northwest exposure of the rocks that has been 
most powerfully acted upon, proving conclusively that the 
force was exerted from that direction." 
Very rare bowlders and small fragments of gneiss foreign to 
Mt. Washington, which in its upper part is andalusite mica 
schist and gneiss, occur above the limit of the ordinary drift 
action, as similar foreign rock-fragments are found very scan- 
tily on the high portion of Katahdin to within 600 or 500 feet 
below its highest peak. But on Mt, Washington the drift 
fragments are scattered thus scantily quite to its summit, near 
which professor C. H. Hitchcock has obtained two bowlders, 
each weighing about ninety pounds. One of these is in the 
museum of Dartmouth college, and the other in that of the 
Boston Society of Natural History. The account of this dis- 
covery, which proves that the ice-sheet at one time overtopped 
even this highest peak of the northern Appalachians, is told 
by professor Hitchcock as follows : — 
"The first suggestion of this novel proposition came to me 
the last day of July, 1875, from an examination of the some- 
what rounded stones of small size lying along the carriage- 
road upon the northeast side of the mountain, about two hun- 
dred and fifty feet below the summit. I stumbled upon two 
bowlders of granitic gneiss foreign to the mountain, — one 
nearly ten, and the other six inches long. This raised the 
altitude at which transported materials existed to about 6,000 
feet. Observation showed that these bowlders came invaria- 
bly from the earth underlying the conspicuous angular debris 
common all over the peak above the line of trees. In repair- 
ing the road, the workmen usually dug beneath the surface 
blocks before obtaining a material suitable for their purposes, 
and there always seemed to be a plenty of it. ... I examined 
the excavation made for the road between the house and 
stables, and obtained several small bowlders, four or five 
