effectual contrivances are not at all necessary,
as the photographic editor has proved by experiment. Two ordinary wooden
pails filled two-thirds full of water, the one for rinsing the plate
after development and before placing in the hypo, and the other in which
to place the plates after they are taken from the hypo, answer every
purpose, and are much less trouble to manage than the complicated
substitutes for running water.

At each end of the table have a wooden box on which to set the pails of
water when developing plates. The pail at the right hand can be used to
rinse the developer from the plate, and the one at the left to place
them in after they are developed, until all are finished.

One should have a negative washing-rack, which can be made according to
directions given in Papers for Beginners, No. 4; for after the plates
are all developed they can be lifted out of the pail, and the water
changed without danger of breaking the plates or scratching the soft
films.

It is a good idea to have a small shelf about three inches above the
table, just large enough to hold the lantern.

At the right hand of the table should be shelves for the chemicals,
developing-trays, glass graduates, and all things used in developing. On
the upper shelf place the bottles containing the chemicals used in
developing plates and in sensitizing paper. Every bottle should be
labelled in large, clear letters. A set of labels on which are printed
the names of all the chemicals in general use in the dark-room may be
bought for ten cents. The bottles must be carefully wiped after using.
To prevent the chemicals running down the outside of the bottles and
staining the labels, coat the rim of the bottle with melted paraffine
wax, which can be applied with a brush.

At the end of the shelf holding the chemicals cut two deep square
notches in which slip the glass graduates when not in use, turning them
bottom side up, in the same way chemists do in their laboratories.

The shelf below the chemicals can be used for the trays, which must be
rinsed and wiped each time after using, and turned bottom side up to
keep out dust.

On the opposite side of the room have the shelves for dry plates,
printing-paper, printing-frames, toning-solutions, and pigeon-holes for
negatives. The pigeon-holes, which are easily made, should be 4-1/2
inches square by 5-1/2 inches deep. This size pigeon-hole will hold
twenty-five negatives. As soon as one has made