1ore is heated, and
exudes the quicksilver; whereupon, impatient with the
heat, and liking the cold, it escapes to the leaves of the trees, which
have a cooling power. When the operation is completed the smelter
extinguishes the fire, and when all gets cool he opens the door and the
windows, and collects the quicksilver, most of which, being heavy, falls of
its own accord from the trees, and flows into the concave part of the floor;
if all should not have fallen from the trees, they are shaken to make it fall.
heat, and liking the cold, it escapes to the leaves of the trees, which
have a cooling power. When the operation is completed the smelter
extinguishes the fire, and when all gets cool he opens the door and the
windows, and collects the quicksilver, most of which, being heavy, falls of
its own accord from the trees, and flows into the concave part of the floor;
if all should not have fallen from the trees, they are shaken to make it fall.
The following is the fourth method of reducing ores of quicksilver.
A
larger pot standing on a tripod is filled with crushed ore, and over the ore is
put sand or ashes to a thickness of two digits, and tamped; then in
the mouth of this pot is inserted the mouth of another smaller pot and
cemented with lute, lest the vapours are emitted. The ore heated by the fire
exhales the quicksilver, which, penetrating through the sand or the ashes,
takes refuge in the upper pot, where condensing into drops it falls back into
the sand or the ashes, from which the quicksilver is washed and collected.
larger pot standing on a tripod is filled with crushed ore, and over the ore is
put sand or ashes to a thickness of two digits, and tamped; then in
the mouth of this pot is inserted the mouth of another smaller pot and
cemented with lute, lest the vapours are emitted. The ore heated by the fire
exhales the quicksilver, which, penetrating through the sand or the ashes,
takes refuge in the upper pot, where condensing into drops it falls back into
the sand or the ashes, from which the quicksilver is washed and collected.
A—LARGER POT. B—SMALLER. C—TRIPOD. D—TUB IN WHICH THE
SAND IS WASHED.
The fifth method is not very unlike the fourth.
In the place of these
pots are set other pots, likewise of earthenware, having a narrow bottom
and a wide mouth. These are nearly filled with crushed ore, which is likewise
covered with ashes to a depth of two digits and tamped in. The pots are
pots are set other pots, likewise of earthenware, having a narrow bottom
and a wide mouth. These are nearly filled with crushed ore, which is likewise
covered with ashes to a depth of two digits and tamped in. The pots are
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