User manual

in
spot.,
repre
enting
the
lights
of
the
picture,
and
in
about
2
minute
the
operator
will
be
able
to
di
tinguish
objects
in
the
picture.
The
developer
should
be
allowed
to
act
5 to
10
min-
ute.
The
progre
of
the
develop-
ment
may
be
watched
by
holding
the
negative,
from
time
to
time, up
to
the
lamp.
5.
Transfer
the
developed
film
to
the
third
tray
and
rinse
two
or
three
times
with
water,
leaving
it
to
oak
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
thrown
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.
A
each
uccessive negative is developed
it
should
be
put,
with
the
preceding
negatives,
in
the
washing
tray
and
·the
water
changed
twice, to
prevent
the
developer
remaining
in
the
films from
taining
them,
and
then
placed
in
the
fixing
bath.
6.
Put
two
tablespoonful
of
the
Hypo-
sulphite
of
oda
into
the
fourth
tray,
4
0