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Doc. 151.] 419
REPLY FROM FAHLUN.
work -people vary so much , it cannot happen otherwise than
that at one time he will have good luck, and at another time
bad luck. Let a miner mix his ore as well as he may, yet
a little oversight in the first calcining may cause a falling
off. Again, he may take all care in the liquefying of the
copper stone, yet the smelter, or he who melts out the copper
afterwards, may do him an injury by some mistake, or some
thing may happen to him unexpectedly. Again the liquefying
of the copper stone (suhlu -bruck) may have been carried on
in the very best way, and yet in the second, third, fourth,
and fifth calcinings (wändråstningar) by a wrong graduation
of the fire great injury may be done to him . Again, his
various calcinings (wändråstwerk) may have been done re
markably well, and yet in setting up the copper stone for
the purpose of getting the copper out of it, by a mistake of
the smelter, from the quality of the coal, or the method of
putting it on, his computations may turn out wrong.
It is therefore vain to try to regulate the production of
copper by making a few trials: for if all places for the works,
all ores, coal, etc. were the same, if smelters and calciners
were all equally industrious, faithful, intelligent, and good,
it would be a different thing. Yet so great a work as this
cannot be settled in this manner. If a physician cures
three patients of fever or some other disease, not all who
suffer from the same disease are bound to pay him fees, nor
can he insist that they shall all adopt the same treatment.
If the different mine -owners could be entered in an account
of debit and credit, and be taxed thereupon unconditionally
which would be an impossibility in so great a work and in
one which is subject to so many contingencies — then the com
pensation or the increase in the yield of copper might be
more easily computed ; but where no correct debit is entered,
no correct credit can be computed, and consequently no correct
balance can be drawn. Besides, the Board of Mines do not
know to what extent the Assessor desires to make use of our
existing furnaces, whether he proposes to build new
with chimneys, which has often been talked of, or whether he
desires to employ a new
new process like that in use in the
Hartz and Goslar, which requires more time and is more
ones
27*
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