.20
Ditto, for 5-inch tank, per package, 1/2 dozen .25
Ditto, for 7-inch tank, per package, 1/2 dozen .25
Kodak Acid Fixing Powder, per 1/4-pound package .10
Ditto, per 1/2-pound package .15
Ditto, per 1-pound package .25

No. 2 Brownie Developing Box

[Illustration]

Offering the same assurance of perfectly developed film as the Kodak
Film Tank, the Brownie Developing Box is a modified form of the same, so
simple to use that any boy or girl can readily understand and operate
it.

It consists of a metal box with cover, just long enough to accommodate a
roll of No. 1 or No. 2 Brownie Film in one loop.

To develop, the roll of film is inserted in the spool carrier, and by
means of a cord and winding shaft the film is unrolled and carried
around a roller bearing, thus exposing the film to the action of the
developer.

Before unrolling the film the developer is poured in the box and the
cover put in place; all these operations being performed in daylight.
The film is then unrolled by turning the crank, when the box is rocked
on its standard for six minutes. The developer is then poured off and
box filled with water to wash out developer, after which film is removed
and fixed in daylight.

This is an excellent means, for those who have No. 1 or No. 2 Brownie
Cameras, of developing their films without the need of skill or
experience.

The Price

No. 2 Brownie Developing Box $1.00
Brownie Developing Box Powders, per package of 6 .15
Kodak Acid Fixing Powders, 1/2-pound package .15
Ditto, 1/4-pound package .10

Eastman Plate Tank

[Illustration]

What the film tank has done for films, the plate tank does for plates.
The idea of the two tanks is based upon the same time and temperature
system of development, with, of course, such differences in actual
construction of the tanks as are required by the physical differences
between films and plates. And as plates must be unloaded in a dark room,
the plate tank cannot offer the advantage of daylight quite all the way,
but it takes only a few moments in the dark room to load this tank,
after which it may be brought out into any light for development.

The device consists of a metal solution cup with cover, a cage for
holding 1