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1
1036
Enquire within upon everything
·
Robert Kemp Philp
730
The
mixture
should
be
made
in
a
wooden
vessel,
as
that
is
preferable
to
one
made
of
metal,
which
conducts
the
external
heat
to
the
materials
with
great
rapidity;
and
when
the
substance
to
be
cooled
is
placed
in
the
mixture,
the
whole
should
be
covered
with
a
blanket,
a
piece
of
old
woollen
carpet
doubled
or
some
other
non-conducting
material,
to
prevent
the
access
of
the
external
warmth;
the
vessel
used
for
icing
wines
should
not
be
too
large,
that
there
may
be
no
waste
of
the
freezing
mixture.
This
combination
produces
a
degree
of
cold
thirty
degrees
below
freezing;
and
if
the
materials
are
bought
of
any
of
the
wholesale
druggists
or
dry
salters,
it
is
exceedingly
economical.
It
is
open,
however,
to
the
very
great
objection,
that
the
spirit
of
salt
is
an
exceedingly
corrosive
liquid,
and
of
a
pungent,
disagreeable
odour:
this
almost
precludes
its
use
for
any
purpose
except
that
of
icing
wines.
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