A—LONG WALL. B—HIGH WALLS. C—LOW WALLS. D—PLATES.
E—UPPER POTS.
F—LOWER POTS.
The sulphur from such a mixture can best be extracted if the upper pots are
placed in a vaulted furnace, like those which I described among other
metallurgical subjects in Book VIII., which has no floor, but a grate inside;
under this the lower pots are placed in the same manner, but the plates
must have larger holes.
F—LOWER POTS.
The sulphur from such a mixture can best be extracted if the upper pots are
placed in a vaulted furnace, like those which I described among other
metallurgical subjects in Book VIII., which has no floor, but a grate inside;
under this the lower pots are placed in the same manner, but the plates
must have larger holes.
Others bury a pot in the ground, and place over it another pot with a
hole at the bottom, in which pyrites or cadmia, or other sulphurous stones
are so enclosed that the sulphur cannot exhale. A fierce fire heats the
sulphur, and it drips away and flows down into the lower pot, which contains
water. (Illustration p. 582).
hole at the bottom, in which pyrites or cadmia, or other sulphurous stones
are so enclosed that the sulphur cannot exhale. A fierce fire heats the
sulphur, and it drips away and flows down into the lower pot, which contains
water. (Illustration p. 582).
Bitumen14 is made from bituminous
waters, from liquid bitumen, and
from mixtures of bituminous substances. The water, bituminous as well as
from mixtures of bituminous substances. The water, bituminous as well as
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