96 / 256
96
DISTILLATION.
The
portable
furnace
(l)
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
well
as
for
the
purposes
of
distil-
lation.
Coal
can
be
filled
in
without
moving
the
boiler,
it
having
a
good
di-aught
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,
ojf
J.
Murphy,
at
N"o.
256
Water
street,
complete
for $5.
The
C07iciirhit,
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
the
boiler,
between
the
top
and
the
brick-work,
and
in
the
stove-pipe.
By.
this
process,
time
and
coal
are
both
saved.
2.
Distillation
Consists
essentially
in
converting
a
liquid
into
vapor
in
a
close
vessel,
by
means
of
heat,
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).
These
vapors
pass
from
thti