238 J. D. Dana on Glacier movements along valleys. 
hall, a distance of 40 to 50 miles, is very narrow, and occupies 
a proper valley, and here the scratches are parallel mostly to 
the trend of the lake—which trend is nearly north and south, 
excepting for the southern part, where it is about 16° west of 
south (S. 16° W.). Along this more southern portion, in Ber- 
son, the course of the scratches, according to the Vermont Re- | 
port, is S. 8° E.,S. 12° W.,S. 15° W.; and in Orwell, just 
north, S. 8° E., S. 12° W. Farther north, in Bridport, the 
course is S. 20° W.; in Addison, S. 17° W. and S. 18° E.; at 
Larrabee’s Point, S. 4°-12° E.; at Crown Point in New York, | 
opposite to Bridport, S. 2° E. on the west side, and S. 27°E. | 
on the east. In Putnam, N. Y., west of Benson, according to 
Mather, S. 10°-15° W. The conformity of the course of the 
20° W. and S. 15°-20° EB. , 
Along each of these valleys, the glacial scratches are closely 
parallel to its main trend, as shown and recognized by the Ver 
mont geologists. It is strikingly exhibited on a map of the 
State accompanying the report. On the Lamoille there are the 
courses 5. 55° E. to S. 85° E.; on the Winooski, the courses 
S. 60° E., S. 80° E., and even east-and-west in one case. 
4. Otter Creek Valley. Otter Creek flows northward along 
: f ; 
e Champlain. Its general course is about N. 1 : 
and S. 15°-20° E. The glacial scratches in the valley have the 
E., 8. 20° E 
valley is but a little east of south, and the same is true of thé 
scratches. 
We have thus evidence of the existence during some part of 
the era of ice not only of a glacier movement in New England 
