Geology, §c. of the Connecticut. 1] 
for in general, the granite along the Connecticut appears 
much lower than the neighbouring rocks, such as gneiss and 
mica slate. No person who examines the East-Haven 
granite, or that running through the Leverett, or even the 
South Hampton deposit, will doubt that some powerful 
agent has swept away an immense mass of superincumbent 
rocks of some description or other. Whether this was a 
primeval northeasterly current as Mr. Hayden maintains, I 
shall not undertake to decide. Be it, however, what it-may 
have been, wherever it has acted powerfully we may ex- 
pect to find the granite laid bare. If these remarks are 
correct, we need not be surprised to find this rock any 
where, even if we cannot make it form any thing like con- 
tinuous ranges, and perhaps some of those small masses x4 
granite, which every one who has examined New-E 
ei appear so + Sap tt and which being sur- 
by phage or mica slate, we aoe cae to refer to beds 
sottlh; pete top of a projection of the 
posites wiles ‘which the’ abra abrading agent has Jaid 
bare. 
Bellows Falls Granite. r 
This is of quite limited extent; but the interesting na- 
ture of the spot where it occurs induced me to colour it and 
notice it thus particularly. Fall mountain on the east bank | 
of the Connecticut at Bellows Falls, consists of a coarse, 
not very perfectly stratified mica slate. At i its western foot 
in the bank of the river, the stratification mes less dis- 
tinct, and is at length, about: the middle of the stream, en- 
tirely lost; and the rock becomes an imperfect granite. In 
other words, there is a graduation from the mica slate into 
the granite. In the western bank, in the village, the char- 
acters of the granite are more decided; though even here, 
I should have no hesitation in calling it a sienitic granite, 
did it ae any hornblende; but I could discover ‘none. 
| s black and abundant, t hus giving the rock a sie- 
sis nepects and it is also traced by veins of felspar and 
granite | like the sienitic granite of phe ar ies and Eolas 
town, to be described hereafter. The ingredients of this 
rock are arranged when viewed ona small scale somewhat 
in distinct layers; but when regarded as a whole, [ never 
