User manual

minutes the
operator
will
be
able
to
distinguish objects
In
the picture.
The
developer
should
be
allowed to
act
5 to
10
minutes.
The
progress
of
the
devel-
opment
may
be
watched
by
holding
the
negative, from time
to
time,
up
to
the
lamp.
6.
Transfer
the
developed film to the
third
tray
and
nnse
two
or
three
times with
water, leaving it to
soak
while the
next
film is
being
developed.
Eight
or
ten
negatives
can
be
developed
one
after
the
other
in
one
portion
of
developer;
then
it
should
be
tbrown
away
and
a
fresh
portion
mixed.
Only
one
negative
should
be
developed
at
a
time,
until
the
operator
becomes
expert.
then
he
can
manage
three
or
four
in
the
tray
at
one
time
and
the
developer
will
answer
for
twenty-four
films
before
being
exhausted.
As
each
successIve
negative
is
developed
it
should
be
put,
with
the
preceding
negatives,
in
the
washing
tray
and
the
water
changed
twice,
to
prevent
the
develop~r
remaining
in
the
film
from
staining
them.
7.
Put
two tablespoonfuls
of
the
Hyposulphite
of
Soda
into
the
fourth
tray, fill two-
thirds
full
of
water!
and
stir
until
dissolved.
This
is called
the
fixing
bath.
8.
Immerse
the negatives one
by
one in the fixing
bath
until
they
are
entirely
clear
of white spots
and
are
transparent
instead
of milky
by
transmitted
light.
This
will
require
about.
10
minutes
. .
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