Jathracite Coal of Pennsylvania. 343 
sided by the all-conquering power of steam, will soon diffuse 
it over every portion of our territory, where it can be usefully 
and economically employed. Those persons who prefer the 
bituminous coal for parlour grates, will find it useful to add 
charcoal to the coak or cinder as it is commonly called; viz. 
the dead mass which remains after the bitumen and gas are 
burned off. The charcoal will reignite this residuum, which 
is really the purer carbonaceous portion of the bituminous 
coal; approaching more nearly than before, to the usual 
condition of the anthracite ; and a very serious addition will be 
thus made to the heat of the apartment and to the economy of 
the fuel. 
It will probably be found useful to burn, occasionally, the 
bituminous coal in the parlour grates along with the anthra- 
cites, thus combining the activity and quickness of the former 
with the durability and intenseness of the latter. Those who 
rely upon the anthracite alone will probably find it useful te 
furnish themselves with both the Lehigh aad, Schuylkill coal. 
I have found them, when mixed, to burn in a very desirable 
manner, but I have tried them in the hall furnace only, and 
mot in the parlour grate. Our cities are however now be- 
coming very well informed in regard to the use of the anthra- 
cites, which are coming more and more into use, especially in 
‘New York and Philadelphia. 
The extension of the use of our mineral fuel as a substitute 
foro ur forest-trees, (which are destroyed with thoughtless 
prodigality) being one of great national interest, I shall fin- 
ish this miscellaneous notice by citing some facts relative to the 
use of the Lehigh coal in the arts. The citations will be 
made from a pamphlet, which although compiled to promote 
the sale of the fuel, contains many valuable documents from 
respectable mechanics and heads of manufacturing estab- 
lishments. ‘The pamphlet contains some remarks and attes- 
tations incommon with that from which quotations were made 
in Vol. IV. of this Journal ; these will be omitted, and such. 
only introduced as appear to be in addition to those before 
published. 
It will be observed that all these documents relate to the 
Lehigh coal; we have seen no printed statements, of this 
kind, relative to the Schuylkill coal, although we must pre- 
sume that they cuuld readily be obtained. We cannot how- 
ever but regard the slight distinctions which are pointed out 
in relation to the qualities of the Pennsylvania anthracites as 
Vor. X.—No. 2. An 
