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DISTILLATION.
The portable furnace(1) is most excellent for boilers of
from 5 to 10 gallons,and may be used as a heating or cook
ing stove for families, as ivell as for the purposes of distil
lation. Coal can be filled in without moving the boiler, it
having a good draught of air, and being laid out with fire
bricks, with a fall-grate for extinguishing the coal after
using. The above can be obtained, ready-made, of J.
Murphy, at ISTo. 256 Water street, complete for §5.
The concurhit, or boiler (2), belonging to the furnace,
contains 10 gallons of liquid, and is formed of tinned cop
per—the smaller part of the bottom standing on the fire
bricks, while the upper bottom covers the top of the fur
nace. This construction enables the first heat of the coal
to give its whole strength on the under bottom, and rising
up by the door,'continues around tl® boiler, between the
top and the brick-work, and in the stove-pipe. By this
process, time and coal are both saved.
/r=T\
2. Distillation
Consists essentially in converting a liquid into vapor in
a close vessel, by means of lieat, and then conveying the
vapor into another cool vessel, where it is condensed again
into a liquid.
To accomplish this, the liquids are placed in the boiler
(2), and when heat is applied to the boiler, spirit begins
to rise in vapor at 176° (degrees), and water is converted
into vapor at 212° (degrees). Those vapors pass from the