234 Geology, Mineralogy, Scenery, ¥ye. 
Descending the hill, trap and argillite and chlorite slate, 
several times alternate, and form the cliffs through which the 
road has been wrought. 
Scenery. 
Now a combination of fine objects, breaks upon the view. 
On the left the magnificent ridges of secondary trap, (men- 
tioned in the commencement of the tour,) stretching away 
North, farther than the eye can distinguish, and forming the 
arrier of luxuriant vallies, whose fine verdure is admira- 
bly contrasted with their naked and lofty precipices ; <3 
ther East, other and still other ranges succeed, till their 
faint outline is blended with the distant sky ; eich 
at our feet, is the great alluvial plain, from which rise. the 
smoke and the spires of New-Haven, and further still its ex- 
tensive bay, surrounded by alluvial and secondary, but ter- 
minated at its mouth, by primitive country, closing in upon 
both sides; and much more remote, but distinguishable in 
the distant horizon, appear the shores and coast of Long-ts 
and, with the intervening sea and the craft and ships which 
it bears on its Sidaing 
General Remarks and Conclusions. 
~_— formations, which are laid down by Mr. Wern 
1. Clay slate, including beds of trap, and anal nae 
sionally into chlorite slate.* 
. babs a mile south of the road, on which my returning tour crossed 
these slaty rocks, commence beds of serpentine mar rble, which conti ee 
sight 6 or ten a, to the sea, and become the beautiful material, so neal 
0 nH lique, now largely quarried and wrought. This ex- 
traordinary bed of marble and serpentine, is wall ed of amore par- 
Cickler account. 
- 
