Agricola, Georgius, De re metallica, 1912/1950

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1machines and come up again, that is by inclined shafts which are twisted like
a screw and have steps cut in the rock, as I have already described.
It remains for me to speak of the ailments and accidents of miners, and of
the methods by which they can guard against these, for we should always
devote more care to maintaining our health, that we may freely perform our
bodily functions, than to making profits.
Of the illnesses, some affect the
joints, others attack the lungs, some the eyes, and finally some are fatal to
men.
Where water in shafts is abundant and very cold, it frequently injures
the limbs, for cold is harmful to the sinews.
To meet this, miners should
make themselves sufficiently high boots of rawhide, which protect their
legs from the cold water; the man who does not follow this advice will
suffer much ill-health, especially when he reaches old age.
On the other
hand, some mines are so dry that they are entirely devoid of water, and this
dryness causes the workmen even greater harm, for the dust which is stirred
and beaten up by digging penetrates into the windpipe and lungs, and
produces difficulty in breathing, and the disease which the Greeks call
ἂσθμα. If the dust has corrosive qualities, it eats away the lungs, and
implants consumption in the body; hence in the mines of the Carpathian
Mountains women are found who have married seven husbands, all of whom
this terrible consumption has carried off to a premature death.
At Altenberg
in Meissen there is found in the mines black pompholyx, which eats wounds
and ulcers to the bone; this also corrodes iron, for which reason the keys
of their sheds are made of wood.
Further, there is a certain kind of cadmia21
which eats away the feet of the workmen when they have become wet, and
similarly their hands, and injures their lungs and eyes.
Therefore, for their

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