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174
THE
COMPLETE
PRACTICAL
DISTILLER.
still,
and
provokes
the
accident
which
has
just
been
men-
tioned.
Many
authors
have
proposed
the
balneum
mariaB
for
the
distillation
of
lees
:
this
mode
would
be
good
with
respect
to
its
effects,
if
the
question
of
economy
would
admit
it.
It
has
already
been
shown
why
this
system
of
distilla-
tion
is
really
not
admissible.
By
these
means
the
em
pyreumatic
taste
would
be
avoided,
but
the
taste
of
lees,
which
is
not
caused
by
torrefaction,
as
will
soon
be
shown,
would
not
be
obviated
at
all.
It
has
also
been
proposed
to
transmit
through
metallic
surfaces
the
heat
of
steam,
but
this
mode
has
the
same
weak
sides,
wkh
respect
to
economy,
as
the
balneum
marise
;
so
it
must
entirely
be
abandoned.
It
would
not
be
the
case
in
the
distillation
of
lees
by
mixed
vapours,
and
this
mode
is,
perhaps,
the
only
one
practicable
to
ob-
tain
from
lees
all
the
alcohol
they
can
produce,
and
of
preventing,
at
the
same
time,
torrefaction.
It
consists
in
placing
the
lees
in
a
wooden
vessel,'
but
better
in
a
metal
one,
in
which
they
are
to
be
heated
by
means
of
a
steam-pipe,
similar
to
that
which
establishes
a
communication
between
the
two
stills
of
Adam
and
Be-
rard.
To
this
effect,
a
steam-boiler,
a
still
for
the
lees,
a
condenser,
and
a
worm
would
be
wanted
in
a
continuous
work
;
the
lees
would
be
brought
to
the
boiling
point
in
the
condenser,
and
would
offer
the
advantages
attached
to
this
disposition.
The
number
of
lees-stills
might
be
in-
creased
to
two,
or
even
three,
by
making
them
of
small
dimensions
and
placing
them
one
above
the
other;
but
this
would
be
the
utmost
of
complications
which
might,
without
inconvenience,
be
adopted
in this
kind
of
work.