GLACIAL DRIFT. 221 
last named town the courses are S, 12°, 15°, and 22° E,, the greatest 
easting being in the valley on Bean’s hill, near the south boundary line. 
The courses in Webster would not vary essentially from those in Salis- 
bury. 
The Pemigewasset below Ashland. Local glaciation probably reaches 
from the mouth of this stream at Franklin all the way to Newfound lake 
and up Cockermouth brook in Hebron and Groton. At the outlet of 
Webster lake the course is S. 32° E., which may represent the normal 
direction to the west of the Pemigewasset. North of Franklin village 
the direction is S. 27° E. This continues uniform for three miles; and 
the grooves and embossment are remarkably well developed near J. W. 
Simonds’s. At this point there is a conspicuous bend in the course of 
the valley; and the strize are observed to change their direction to con- 
form with the topography. At S. Pike’s, a mile beyond Simonds’s, the 
strie point S. 42° E. From here to Hill the valley broadens, and the 
ledges are covered by sand. At the east side of the river, in the north- 
east edge of Franklin, the course is S. 22° E. down the valley, and the 
accompanying embossments are admirable. This locality is opposite to 
the first named examples below the prominent bend in the river. 
On the Sanbornton side of the valley, between Hill and Bristol, there 
are ledges which have their stoss sides marked from the north, and they 
probably present other illustrations of the local action. Our table con- 
tains several observations of south-east strie down the valley of Cocker- 
mouth brook in Groton. The east side of the lake shows other striae, 
however, pointing up hill, and therefore having no connection with the 
local glacier. 
There are examples of a local sliding in New Hampton and Bridge- 
water. These are all connected with the Pemigewasset movement, and 
are mentioned in the tabular list. 
The Lower Merrimack. Several points may be made about the lower 
Merrimack movement. The general direction of the valley is S. 15° E., 
so that strize varying ten degrees from this on either side may be regarded 
as belonging to this special glacier. From Franklin to Massachusetts we 
have, in order, S. 15°-27° E.; Canterbury, 15°-40°; Boscawen, 17°-27°; 
Concord, 9°-11°-21°; Hooksett, 16°-26°; Manchester, 15°-26°; London- 
derry, 11°-21°; Souhegan village, 16°; Nashua, 11°; and in Hudson an 
VOL. WI. 29 
