GLACIAL DRIFT. 229 



There are no indications of the passage of this glacier below Bethel, 

 so far as I had time to search for them. I did not follow down the An- 

 droscoggin on the south side, and the north side only to Bear river, 

 though I crossed it at Rumford Point. I found evidences of local action 

 down Bear river, in Grafton and Newry, and upon Ellis river in Andover 

 and Rumford, as well marked as those along the Blackvvater in Andover, 

 N. H. On the east town line of Bethel, the stride run S. 4° E., and S. 24° 

 E. On Paradise hill, south of the village, the course is S. 23° E. These all 

 correspond to the common course of the drift in this part of the state. 



Saco Valley. A few points of interest manifest themselves through 

 the valley of the White Mountain Notch, which may be regarded as a 

 local movement. The mountain east, Webster, shows the course S, 

 30°-37° E. On the west, Tom, S. ^f E., Field, S. 50° E., Willey, S. 

 42° E., corresponding well with the usual south-east course on the high- 

 est summits. Mt. Willard, which is really the head of the valley, shows 

 distinct striae, more abundant on the slate towards Field, running S. 23° 

 E. In the very Notch, by the railroad, the course is S. 20° E. Under 

 the Butterwort flume, close by the railroad, at a small house, are glacial 

 lines on a mural surface running with the valley ; and on the south side 

 of Mt. Willard the course S. 15° E. was measured. On the railroad, by 

 the Willey brook, the striae may be seen from the train on both sides, 

 and is thought to be southerly, as it certainly occurs parallel to the valley. 

 Other markings down the valley directed more easterly, occur upon the 

 north side of Frankenstein cliff. Below Bemis a mural surface shows 

 similar scratches over a limited area. No other markings have been 

 seen. Mt. Washington river shows an immense cliff of rudely stratified 

 material near its mouth, comparable with the similar deposit on Peabody 

 river produced by the melting of a local glacier. The immense amount 

 of boulders and coarse moraine material just below Sawyer's Rock sug- 

 gests detritus brought down by a local glacier. The tributary Duck 

 Pond stream, west of Bemis, shows striae upon a mural surface, pointing 

 S. 18° E., which may have been connected with the Saco glacier. The 

 nature of the rocks, readily disintegrating, and their obscurement by 

 debris and forests, render it difficult to accumulate many facts about drift 

 phenomena in it ; but enough has been seen to indicate the probability 

 of the existence in it of an ancient local glacier. 

 VOL. III. 30 



