Agricola, Georgius
,
De re metallica
,
1912/1950
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BOOK VI.
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<
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>Digging of veins I have written of, and the timbering
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of shafts, tunnels, drifts, and other excavations,
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and the art of surveying. </
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<
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>I will now speak first of
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all, of the iron tools with which veins and rocks are
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broken, then of the buckets into which the lumps
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of earth, rock, metal, and other excavated materials
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are thrown, in order that they may be drawn, con
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veyed, or carried out. </
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water vessels and drains, then of the machines of
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different kinds,
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1
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and lastly of the maladies of miners. </
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matters are being described accurately, many methods of work will be
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explained.</
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<
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>There are certain iron tools which the miners designate by names of their
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own, and besides these, there are wedges, iron blocks, iron plates, hammers,
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crowbars, pikes, picks, hoes, and shovels. </
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<
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referred to as “iron tools” there are four varieties, which are different
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from one another in length or thickness, but not in shape, for the
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upper end of all of them is broad and square, so that it can be struck by the </
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