ee nO ee ee ee mee: 
Geology, &c. of the Connecticut. 85 
seen for one or two miles; but on the eastern side, if | 
mistake not, nothing of this kind appears; and I should 
suppose the ’powlders of Woodbridge and. Milford, being 
evidently brought from the country to the north, would tes- 
tify in favor of such an hypothesis. 
Suggestion concerning rolled Stones. 
Is it not a fact that rolled masses are more abundant and 
more perfectly ‘etiegige along the limits monies the primi- 
babes and igen or secondary? This question has often 
traivelliig in the soul eastern part of 
occu to me 
Masgi chisett, “when going over the country along the 
Connecticut in Bernardston and its vicinity, when descend- 
ing the Hoosack and Green Mountains on the west, and 
when passing over the country west of New- Haven. If 
such be the fact it may, when it occurs in the geologist’s 
tours, be a warning to him to expect a change in the rocks 
in place. 
Fact relating to the detachment of large bowlder stones from 
their bed. 
Deerfield river in the greater part of its course is a 
mountain torrent, very rapid and powerful. It has worn 
a passage often four perro deep, the banks beet “a 
most perpendicular. Its winter floods are most powe: 
in effecting this work. The i 2 freezes three or four ri 
thick, and when a sudden rain melts the snows on its banks, 
it rises rapidly and lifts up and urges forward with tumultu- 
ous fury, this immense body of ice. As the banks among 
the mountains are steep and rocky, they prevent the ac- 
cumulation of water and ice from spreading to the right or 
left, and it is raised proportionally higher ; and thus an im- 
mense force is exerted upon obstacles in the bottom of the 
