300 Argillite, embracing Anthracite Coal. 
also often intermixed, and grains of quartz frequently enclos- 
ed. anthracite is always between the layers of argillite, 
and these layers are considerably inclined, dipping at their 
south eastern edges. On traversing these layers in a south 
easterly direction, they are found to pass into talcose slate, 
sooner or later—generally at the distance of about twenty 
miles from the Hudson, In some localities of the glazed argil- 
lite, on the banks of the Hudson, we find remains of bivalve, 
moluscous animals and chambered univalves, which are in 
some cases, intermixed with the anthracite. Troy and W aier- 
ford, in N. Y. afford the best localities yet discovered. 
beds of anthracite have hitherto been discovered in the argil- 
lite on the Hudson, of sufficient extent to promise a reason- 
able reward to the miner. 
etween two and four miles west of Bellow’s falls, on the 
Connecticut river, in the town of Rockingham, Vt., there is 
oC 
at its eastern side. But it has not yet been thoroughly ex- 
amined, and no anthracite has been found in it, in the state 
of Vermont. Its extent north and south, is not precisely 
known; but it has been traced about one hundred. miles. 
Anthracite has been found near Hadley falls, in Southamp- 
ton, Mass. which may have some connection with it. This 
last range is nearly parallel to the first, at the average dist- 
ance of forty miles, east of it, in a straight line. : 
Another range ofvargillite, in all its characters, precisely 
like that along the Hudson, runs in a direction parallel to the 
other two, about forty miles east of the last mentioned; but 
the dip of its edges, is in the contrary direction. It pass- 
es ont Worcester in Mass., two miles east of the vil- 
portis situated. Its northern extent is not ascertained. Like 
the two other ranges, it passes into talcose slate every where 
on the eastern side. Like the Connecticut river range, its 
breadth is very limited. Larger beds of anthracite have been 
discovered in this range than in either of the others. One bed 
is now wrought in Worcester, which is five feet wide, sixty 
feet deep, and five hundred fect long. About one hundred 
ind sixty tons of anthracite coal have been already taken 
from it. It often contains asbestus, plumbago, and grains 
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