984 GLACIERS IN THE WHITE MOUNTAINS. 
south to Lewiston, and from that place twenty-five miles 
south-east, through Lisbon and Brunswick, to its junction 
with the Kennebec above Bath. 
Now, while the glacial traces in the north and south reaches 
of this river might have been made either by the general ` 
operation which has polished off the whole country, or by a 
local glacier confined to the valley, such could hardly be 
the case with any furrows which may be found coinciding 
with the general direction of the east and west reaches. Let 
us look at the Androscoggin Valley, from Bethel in Maine, 
to Gorham in New Hampshire. This part of the river flows, 
for twenty miles, from west to east, and is bounded on both 
sides by abrupt hills from 1,000 to 2,000 feet high. At 
Bethel the valley opens, the hills receding and decreasing M 
elevation. Where glacial furrows are found upon the tops 
of the Bethel hills, they run nearly north and south. ‘Pro 
ceeding up the valley towards Gorham, upon the south 
(right) bank, at a point about two and a half miles above 
Bethel, before we really enter the close valley, and perhaps 
a hundred feet above the level of the river, a small exposure 
of rock is seen directly in the common road, being about SX | 
feet square, with a long gently sloping polished surface t0- 
wards the north, and a steep and rough face tow 
south. The furrows upon the smooth northern surface ee 
north and south, and the hills upon the summits of ve : 
the furrows run north and south, lie exactly north of Te 
rock, upon the opposite side of the river. Thi age 
had evidently no connection with the Androseogg™ mM 
grooves point almost directly across it. Continuing ee 
valley, just above Pleasant River, five miles above : 
about one-fourth of a mile south of the road, and perbal : 
two hundred feet above the river, the rocks are well po a 
ished; and from faint lines upon masses of quartz, w 
direction of the ice is seen to have been 8. 50° E- er r 
above Bethel, where the river, railway, and pee. m 7 
closely together, and sweep round the base of P 

