in Weft-River Mountain, $17 
lar to burnt fand, intermixed with cinders. "The furface of 
the rocks, for a confiderable diftance, indicates that there have 
been very intenfe.fires, and probably melted matter upon them, 
for they are turned into perfect cinders. 
'The other place where the eruption has been is fo deftroyed,. 
that I can inform but little: with. regard to it: only upon one 
fide the rock is greatly calcined. - 
A number of gentlemen, apprehenfive that there is fome 
valuable mine in this. Mountain,. have undertaken to penetrate 
the bowels thereof. Accordingly, they have dug nearly eighty 
feet, in a perpendicular dire&ion, into the Mountain, following. 
a.yein of matter, appearing fimilar to oker,. both yellow, red, 
and brown ; alfo, very often, they find pieces of cinders,- like. 
thofe which I have fent you. This vein, in fome places, is- 
(ixteen. feet in diameter, in other places-not more than five. 
In digging, . they often find ftrata of this calcined matter,. 
with a confiderable mixture of other fubftance, appearing as if- 
it had been intenfely burned: I defcendéd to the bottom of 
this (truly hideous) pit, and obferved, that the rocks, in many 
places, were turned into cinders. 
I am not able to determine, whether there be any thing of a` 
fülphureous mature on this Mountain ; but this* Fdare affirm; 
that there have been feveral eruptions’: but whether it may, 
with propriety, be called a volcano, I know not. This deter- 
mination is fubmitted to the judgment of gentlemen more ac- 
quainted with the nature of voleanos, than I can pretend to be. 
I fend you, for obfervation, two pieces, that were taken one: 
from the top and the other feventy feet under ground. 
Fram, &c. 
CALEB ALEXANDER, 
