24 Geology, &c. of the Connecticut 
Sketch ; Vet it seems worth noticing, but hardly of sufii- 
cient importance to form a separate paper. 
In going westward from Connecticut river, we first pass 
over an alluvial tract and then continue gradually to ascend, 
for twenty miles, to the top of Green and Hoosak moun- 
tains. As might be expected, the winters on this elevated 
land continue two or three weeks later than in the valley ; 
that is, the farmer can sow his seeds two or three weeks 
earlier in the valley than on the hills. But in autumn, 
e destructive frosts are usually as much later on the hills 
ae ong the river:—so that one frequently passes from 
the riverin October, where almost every vegetable is des- 
troyed, and finds the crops uninjured on these hills ; and 
the crops there are about a fortnight later than those in the 
vallies, so as to require this lengthening out of their time of 
ripening. I have been disposed to attribute this fact to the 
greater moisture of the atmosphere of the vallies, arising 
from the more copious exhalations from the river, whereby 
the effects of frost are greatly increased, even at the same. 
temperature. 
Tabular Arrangement é the Rock Formations along the 
Connecticut.* 
* There follow with jPlossure the very simple yet ingenious arrange- 
ment of rocks, which is adopted by Conybeare and paca as ered basis 
i England an _ It has 
of 
rare merit of being entirely free from bh Se i d be well ifa 
similar ion ea e 
loch, Greenough, Buckland, Webster, Borré, Cuvier, Brongniart, &c. we 
confidently e expect | tha it will be speedily seoomplisbed. 
e, I me rocks in the Inferior Or- 
der, which the authors of this arrange peer place i os _ Sp yomgn Or- 
der. For their acoount of these orders is not yet published ; and in the 
—— sketch, they have given, oe a a patt of the fecks Neseeee to grhoa 
er are enumerated. 
