84 Geoloy, &c of the Connecticut. 
count for this. But in general along this river, the char- 
acter of the rolled masses corresponds to the rock in place | 
underneath them ;—that is the greatest number of the 
oose stones are of the same description as the rock that 
underlies them. But to this there are many exceptions—a 
most remarkable one occurs a few miles west of New- 
from an inch to twenty, or even thirty feet, and they are 
usually rounded, indicating attrition. Some of the highest 
of these bowlders are found insulated on the pinnacles of 
our mountains. 
There is a particular kind of geest; which I have al- 
ready mentioned, occurring along the Connecticut, that 
does not seem to be comprehended in Professor Jameson’s 
definitions. It is that kind of soil that results from the 
slow disintegration and decomposition of certain rocks, 
with a mixture of decaying vegetables. This, as already 
observed, is not uncommon above the old red sandstone 
and the red siliceous sandstone slate of the coal forma- 
tion. And the epithet deluvian seems to exclude this kind 
of soil from Prof. Buckland’s deluvian detritus; and so the 
epithet fluviatile excludes it from the fluviatile detritus of 
the same author. (Rees’ Cyc. Art. Geology, Addenda.) 
Hayden’s Hypothesis of a primeval northeasterly current of 
ae water. 3 
lallude to Hayden’s Geological Essays, in which he ex- 
presses the opinion that the alluvion of our middle and 
southern states was formed by a current or currents that 
formerly flowed across this continent from the northeast to 
the southwest; and I am inclined to believe, (without in- 
tending, however, to adopt altogether his theory on the 
