326 J. D. Dana on the position and height of the 
at Hast Nee S. 58° E., S. 78° E.; on the east shore S. 38° E., 
S. 18° at West Bay, S. 15° E. - on the west shore, 8. 35° E., 
Ss. ia ns 4° he BoP By 7° 
The courses of the scratches on the heights of northern Maine 
(S. 59° E. on Mt. Abraham, C. H. Hitchcock) also favors this 
conclusion. Again, in the part of Canada, north of northeastern 
aine, on the Madawaska River, about Temiscouata Lake, 
Logan found scratches trending S. 54° E., S. 52° E., S. 55° E,, 
S. 66° E., S. 48° E., S. 60° E., (with one of S 27° Hi): and these 
courses, if the form of the surface has not increased the easting, 
would point to the same watershed and the part lying between 
Temiscamang and Mistissinny Lakes, but nearer the latter, and 
these lines continued would strike into Hudson’s Bay, and this 
is additional proof that the high land was along the watershed. 
Again, the courses of the scratches in western New York 
and on Lake Huron and Lake Nipissing (northeast of Lake 
Huron and south of tae Temiscamang), have considerable 
westing. On the north shore of Lake Huron the course is 
penne suit vine all the observations here cited, és may C0 
clude with much confidence that the region of great cat oles 
husetts ; about S. 30° E. in sel en ate 
aia about 8. 25° E. in Connecticut and in eastern New Y 
adjoining. These directions correspond well with = position 
assigned to the Icy Plateau. But as the Adirondac s lie be 
mits of the Green- Mountains are, according to Guyot, t, betwe 
and 4430 feet in elevation, the latter being the hei | 
Mt. Mansfield. Killington Peak, 60 miles south of Mt The 
_ field and east of Rutland, is 4221 feet high (Guyot) 7", 
average height of the range, according to the same authorey : 
