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1
1036
Enquire within upon everything
·
Robert Kemp Philp
284
668.
Care
of
the
Mortar.
Be
careful
not
to
pound
too
hard
in
glass,
porcelain,
or
Wedgwood-ware
mortar;
they
are
intended
only
for
substances
that
pulverize
easily,
and
for
the
purpose
of
mixing
or
incorporating
medicines.
Never
use
acids
in
a
marble
mortar,
and
be
sure
that
you
do
not
powder
galls
or
any
other
astringent
substances
in
any
but
a
brass
mortar.
669.
Sifting.
Sifting
is
frequently
required
for
powdered
substances,
and
this
is
usually
done
by
employing
a
fine
sieve,
or
tying
the
powder
up
in
a
piece
of
muslin,
and
striking
it
against
the
left
hand
over
a
piece
of
paper.
670.
Filtering.
Filtering
is
frequently
required
for
the
purpose
of
obtaining
clear
fluids,
such
as
infusions,
eye-washes,
and
other
medicines;
and
it
is,
therefore,
highly
important
to
know
how
to
perform
this
simple
operation.
First
of
all
take
a
square
piece
of
white
blotting
paper,
and
double
it
over
so
as
to
form
an
angular
cup.
Open
out
this
filter
paper
very
carefully,
and
having
placed
it
in
a
funnel,
moisten
it
with
a
little
water.
Then
place
the
funnel
in
the
neck
of
the
bottle,
and
pour
the
liquid
gently
down
the
side
of
the
paper,
otherwise
the
fluid
is
apt
to
burst
the
paper.
671.
Maceration.
Maceration
is
another
process
that
is
frequently
required
to
be
performed
in
making
up
medicines,
and
consists
simply
in
immersing
the
medicines
in
cold
water
or
spirits
for
a
certain
time.
672.
Digestion.
Digestion
resembles
maceration,
except
that
the
process
is
assisted
by
a
gentle
heat.
The
ingredients
are
placed
in
a
flask,
such
as
salad
oil
is
sold
in,
which
should
be
fitted
with
a
plug
of
tow
or
wood,
and
have
a
piece
of
wire
twisted
round
the
neck.
The
flask
is
held
by
means
of
the
wire
over
the
flame
of
a
spirit
lamp,
or
else
placed
in
some
sand
warmed
in
an
old
iron
saucepan
over
the
fire,
care
being
taken
not
to
place
more
of
the
flask
below
the
sand
than
the
portion
occupied
by
the
ingredients.
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
