Anthracite Coal of Pennsyivania. Bale 
Say thatthe Lehich is the most durable—and this is doubtless 
true, under some circumstances—viz. If the same volume of 
Schuylkill coal (which is probably about 8 per cent. lighter 
than Lehigh) should be submitted to the same powerful 
draught, or blast, as the Lehigh, it would consume faster— 
but [be-leve an equal weight, and with a properly graduated 
draught, to produce the best combustion, that the Schuylkill coai 
will be found a little superor to any other of the Anthracite 
coals yet discovered. 
The grates for the Schuylkill coal are of various construc» 
tion, but generally with vertical bars, although many persons 
burn the Schuylkill ceal in the old Liverpool grates, with 
some slightalterations in the draught.’ The best kindling is 
charcoal, and a little light wood to give it a quick blast, and 
with the aid of a sheet tron blower, 1 have my grate well ig- 
nited in eight to fen minutes. 
As to future supplies from the mines, there is but one dimit- 
ing cause—and that is the capacity of the canad to float it to 
Philadelphia. It is intended to bring 25,000 tons next year, 
which will be equal to 100 tons per day, for eight months. 
Tt is expected that ultimately, four times that quantity will be 
brought to market annually.’’ | 
It is stated that 8,800 tons of the Lehigh coal had been 
received in New York during the present season up to Janv- - 
ary 1, and that 6,000 tons had been sold in New York, be- 
sides what is allotted to other markets. The ton is twenty — 
eight bushels. 
It is not necessary for me to decide between the claims of 
the two principal varieties of the anthracites of Pennsylvania, 
as they exist in the markets of New York and Philadelphia. 
They are both so valuable, that there need be no competition 
between them, and the anthracite of Wilkesbarre is, I pre- 
sume, not inferior to either, although at present it does not 
find its way to the eastern Atlantic cities. 
It appears to me that the Schuylkill coal kindles more 
veadily than the Lehigh, and begins to warm the apartment 
sooner, but with the same draught of air, it does not endure 
so long. I see no great difference in the degree of heat 
which 1s finally produced, and by checking the draght after 
ignition is thoroughly established, it may be made to last 
nearly as long as the Lehigh. 
So faras my information extends, the anthracites of Penn- 
sylvania are the most valuable fuel in the world, and if l am 
not deceived, they possess a eharacter, with respect te flame, 
