30 Geology, &c. of the Connecticut. 
tfield, is a ereeionnes: of common earthen ware, and 
here a small stream, running east, has cut across the great- 
er part of thas sienite range, and laid the rock bare nearly 
the whole distance, sehich does not te exceed half a 
mile. Leta person follow up the south side of this stream, 
and in some of the ledges he will perceive a distinct strati- 
fication of the sienite, though of little extent; one part o 
the same ledge being often stratified and the other amor- 
phous. In this place he will see, also, numerous intersec- 
tions of granitic and other veins by which a part of the rock 
has been displaced. In one of the ledges a little distance 
from this stream, on the south side of a pond, may be seen 
the eeteeina of Fig. 6. 
Another interesting fact may be noticed in the sienitic. 
granite along ae stream, especially on the northern side, 
near the earthen ware manufactory. The rock here contains 
numerous imbedded masses of other primitive rocks, as gneiss, 
mica slate,quartz, hornblende, and a finer kind of sienite. And 
what is peculiar,is that these imbedded fragments are almost 
uniformly rounded—as_ much so.as those contained i in the 
fragments as in 
e have a eal conglomerated sienite, and I had al- 
most ede a conglomerated granite : for much of the rock 
containing these fragments is destitute of hornblende,while 
all the ingredients of granite are present. And the instan- 
ees in which this conglomerated rock occurs,are not confin- 
ed to the particular locality above named—but it is to be 
found in many other parts of the range. I have seen bowl- 
ders of it in Surry, Alstead and Walpole in New-Hamp- 
shire, but I did not there see the rock in place. 
The Northampton sienitic range lies at a very low level. 
A considerable part of itis hidden by a deposit of sand 
through which it sometimes projects. The sienite in Bel- 
chertown is also rather low. All the remarks above made, 
in relation to the Northampton range, except that in regard 
to its conglomerated character, will l apply to this. The best 
route which I have found for viewing this sienite,after cross- 
