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CONTINUOUS
DISTILLATION.
57
the
largest
establishment
known.
Another
improvement,
advantageous
to
the
art
of
distillation,
is
an
apparatus
for
preventing
the
loss
of
alcohol
or
spirit
during
the
vinous
fermentation.
(See
fig.
11.)
Fig.
11,
This
apparatus
consists
of
a
vessel
or
head,
constructed
so
as
to
be
capable
of
attachment
to
and
communication
with
the
back
or
vat
in
which
the
process
of
fermentation
is
carrying
on,
in
the
production
of
wine,
brandy,
beer,
&c.
The
back
or
vat
is
to
be
closed
on
all
sides,
air-tight,
except
an
opening
in
the
top,
which
communicates
with
the
head
above
mentioned.
This
head
is
to
be
surrounded
by
a
vessel
of
cold
water,
in
order
that
the
alcoholic
va-
pours
evolved
during
the
process
may,
on
rising
up
into