Directly over the center of the sink is a shelf for developers and on the under side of this shelf are cleats for holding graduates upside down. At each side of the center is a No. 1 Wratten Safelight Lamp and at the right, a shelf for scales, etc., above which are racks for developing holders. The shelf at the left may be used for plate tanks, large bottles of stock solution, etc.

At the extreme left end of the sink is an illuminator in which there is a standard negative which is to be used as a guide in securing negatives of uniform printing strength and quality. By comparison it can be readily determined whether or not a negative needs after-treatment, and if so, it can be reduced or intensified before it leaves the darkroom. This illuminator is best seen in the picture showing the enlarging outfit.

A Model Dark Room StudioLightMagazine1918 82

ELEVATION AT -B-B'.'

It may also be mentioned that there is a ventilator in the wall above the sink and an intake in the wall near the floor beneath the enlarging paper cabinet. The upper ventilator is equipped with a fan which forms sufficient suction to completely change the air in the room in a few minutes. In warm weather this fan may be kept running at a very slight expense and the air of the darkroom will always be sweet and fresh and dry, which, as everyone knows, is very important to the health of the worker.

A Model Dark Room StudioLightMagazine1918 83

Model Dark-Room - Showing Enlarging Outfit

It will also be noted in these illustrations that there is an inverted light box suspended from the ceiling which furnishes the general illumination. This may seem an extravagant use of light, but when the room is used continuously for either printing, enlarging or developing, a general illumination is a great comfort and the room so lighted seems, in a short time, to be so light as to be an unsafe place to work. This, however, is not true if proper Safelights are used.

Most workers have become so accustomed to a dark-room - have, in fact, been brought up in a dark room, and a light darkroom seems as inconsistent as it sounds. The Indirect Light Box may be had with either one or two light compartments, 10 x 12 inches in size. If the double compartment box is used, one side may be fitted with a light yellow or orange safelight, the Wratten Series 00 for Artura or similar paper, or the Series 0 for enlarging papers, and the other side with a Series 1 or Series 2 for ordinary plates or for film or orthochromatic plates.

At the left of the sink is the enlarging apparatus, which is about as convenient and at the same time as inexpensive an arrangement as could be devised. The F. & S. Reversible Back Enlarging Camera is mounted on a sliding panel, which, when raised, places the camera entirely out of the way.

The panel is balanced by sash weights which are enclosed in Compo-board boxes attached to the wall. The weight cords run over pulleys in the ceiling. The enlarging light is outside the dark-room, and the enlarging easel, when not in use, stands in front of the panel close to the wall. At the left of the camera is the paper cabinet with a weighted sliding door.

The diagrams give the dimensions of the cabinets, the sink,etc., and with the illustrations one can form a very good idea of the room and its arrangement. The main points are economy of space, convenience for the worker, good ventilation and plenty of light. In such a workroom one should be able to turn out the maximum amount of work with the least labor and always have clean, healthy surroundings.