Anthracite formation of Wilkesbarre, &e. 13 
hundred and twenty gallons, of the small one seventy. We 
make use of stone coal for fuel. We can, with ease, dis- 
charge our stills six tumes in twenty-four hours, and in that 
time use only about three bushels of coal, without any dan- 
ger of burning the liquor or stills. It is not attended with 
half the labor of a wood fire, nor do we experience that dif- 
culty of regulating the fire as is the case where wood is 
used. 
JOHN P. ARNDT. 
Experiments of Mr. Smith, of Bucks county, Plough manu- 
facturer, shewing the excellence of Laeuren Coat, for 
Blacksmiths work. 
Ist. In forging twenty plow clevices, used a full heaped 
half bushel weighed 45lb. 5 7 
In making the same number of twenty, with charcoal, 
used six bushels, and took two hours more time. 
2d. In welding up coulters that used to require three 
heats with charcoal, now require but two and frequently 
done with one. 
3d. Laying sharemoulds and welding on the land-sides, 
that used to require four heats each, now done in three and 
frequently with only two, and taken in less time. 
4th. In order to make a more accurate experiment, I yes- 
terday morning weighed a bushel for each fire (72lbs. or 
the thirtieth part of a ton) having previously cut up two 
hundred of 3-4 square iron, which they forged into fifty- 
three plow clevices; one fire in working twenty-eight, used 
all their coal and one bushel of charcoal; the other, in 
working twenty-five had 8lbs. left, and completed their 
work in one hour less time than the same hands had done 
the twenty-eight with charcoal. 
They are also found to work steed better than any other 
kind of coals; not burning either that or iron as other coal 
does. From the whole of my observations (and [ have 
been particularly’ attentive to the use of them the month 
past,) I am fixed in the opinion that one bushel of this coal 
is worth two of the Richmond, and ten or twelve of the best 
charcoal. I also think Weiss’s the best that I have seen, as 
they were so very pure that the smith had no occasion of 
clearing out his fire more than once a day. 
