If a kerosene lamp is used, the common white chimney with full flame will be safe; and being outside, the room will not be heated by its flame, nor rendered offensive by its smoke and odor.
In front of the window or of the artificial light, [p050] erect a shelf or place a small table with a level top, which will support the developing dishes and bottles of developing solution, and on which the work of development may be carried on.
If the room is so situated that neither window nor gas may be used in the manner suggested, then procure Carbutt's Developing Lantern, which is a most convenient lantern, not only for developing, but for other purposes. See figure.
The dark room should be supplied with running water, and the more generous the supply, the better, as a dry plate requires much washing, and a large stream will do the work much quicker than a small one.
In many instances, however, where running water may not be had, the washing box may be used with advantage. If running water is used, be careful not to use too much pressure; by attaching a rubber hose to the faucet and passing it over a nail or hook above, the pressure may be reduced so that a full but gentle stream falls upon the plate.
Safe closets should be provided to contain all sizes of plates; or the new [p051] made by Anthony & Co., may be used instead, both for unexposed and for exposed plates awaiting development.
[Illustration: JAPANNED IRON DEVELOPING TRAY,]
[Illustration: GLASS BOTTOM DRY PLATE DEVELOPING TRAYS.]
The dark room should be supplied with the necessary apparatus, such as developing trays, which are of japanned tin, of glass or india rubber; see cuts, JAPANNED IRON DEVELOPING TRAY, ANTHONY'S GLASS TRAYS, or the patented article, the GLASS BOTTOM DRY PLATE DEVELOPING TRAYS, [p052] and also the dishes to contain the fixing solutions, which may be trays or upright, like silver-bath dishes.
THE COMMON SENSE TRAY is a capital dish to contain the hypo and clearing solutions and is not expensive, and can be had of all sizes. All these dishes should be kept scrupulously clean when not in use.
There should be Graduates of the 16 oz. and the 8 oz. sizes, and also a minim glass measuring up to [p053] one fluid ounce, also one or more of Anthony's Combined Funnel and Filter, for filtering the various solutions.