2 r 
found to contain 97 parts of pure carbon out of the l GO,* 
and the anthracite or glance coal (blind coal.) 1 Both these 
kinds are found in the United States. The former exists in 
Virginia, on both sides of the James’ river, over a tract of 15 
or 20 miles. It has already become an important article in 
domestic commerce. The latter has been discovered in the 
state of Rhode-Island, in a state almost as pure as the Kil- 
kenny coal; f and in Pennsylvania, at Wilkesbarre, and on 
the Lehigh.f Indications of this mineral are found in the 
states of New-York, New-Jersey and Maryland. 
In searching for coal, it is of importance that the persons 
engaged, should be well acquainted with the proper indica¬ 
tions. In this country, much expense has often been unne¬ 
cessarily incurred, in consequence of the ignorance of min¬ 
ers. An enterprise of this nature ought to be committed to 
a practical mineralogist, who has not only been conversant 
with the coal countries in England, (the rich reservoirs of 
this mineral,) but also understands the substances which 
usually form the super-incumbent strata. Much useful in¬ 
formation may be gathered from books, particularly Wil¬ 
liam’s History of the Mineral Kingdom, from which an ex¬ 
tract has been re-published in this country by Dr. Bruce.§ 
Should our present supply- of Sulphur from Italy be at 
any period stopped, it might doubtles be obtained in suffi¬ 
cient quantities from the decomposition of pyrites and other 
metallick minerals.1T It is said to exist in large quantities in 
the volcanic tract in Louisiana. Sulphur springs are found 
in various states. At the Clifton Springs in Ontario coun- 
Kirwan’s analysis of various species of English coal, in Mur¬ 
ray’s Chemistry, vol. 3, p. 635. 
| Carbon 94, ashes 6. “ Vide u an enquiry into the chemi-r 
cal properties and character of that species of coal lately discov¬ 
ered in Rhode-Island, &c.” Published in the 3d supp. to Barton’s- 
Med. and Physical Journal, p. 221. 
^ Strata of coal are found at Pittsburgh, and probably extend 
into the state of Ohio. It is also found in Tennessee;, and the In¬ 
diana and Illinois Territories. 
§ Bruce’s M. J. No. 3, p. 166. 
II Sulphur is obtained from pyrites in Saxony and Bohemia 
(Nicholson.) A cheap way of making sulphur from metallick mine¬ 
rals, practised at Ramelsburgh in the Hartz (Germany) is men¬ 
tioned by Chaptal, vol. 2, p. 271. 
