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Doc. 152.] 421
SWEDENBORG’S REPLY.
[On the reception of this report, it was communicated by
the College of Mines to Emanuel Swedenborg; and his
strictures upon it, which are contained in the following docu
ment addressed to the College of Mines, were considered by
that body on December 13.]
DOCUMENT 152.
SWEDENBORG’S REPLY. *
High well-born Count and President,
In obedience to the order given by Your Ex
cellency and the Honourable Royal College of Mines, the
Board of Mines of the Great Copper Mountain have given
their humble opinion respecting a trial which I intend to
make, to prove that the yield of copper in Sweden may be
increased 10 per cent above that which is obtained by the
usual process, when all that belongs to the nature of fire, the
blast, furnaces, and the ores themselves, is properly considered;
and inasmuch as the above-mentioned Board of Mines are
pleased, on the one hand, to doubt, and on the other, to
pronounce incorrect those postulates which I deemed necessary
to institute a fair and just trial, and to arrive at perfect
certainty ; therefore I humbly submit to Your Excellency
the following, by way of explanation:
1. The Board of Mines, in the first place, express their
unqualified general opinion as to the impolicy of changing
the customary processes of smelting, which have been
elaborated during many centuries, and have thus acquired
autority, mentioning the names of all those who have boldly
attempted, unsuccessfully, to effect any change in them ,
and stating at the same time the distaste and objection the
mine-owners around Fahlun have acquired to the so -called
new -fangled miners. But in reply to this it is to be observed
* Preserved in the College of Mines among the Bref och Suppliquer
for 1722, No. 154.
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