To make an enlarged picture of a small negative take out the back of your camera and get two perfectly clear sheets of glass to fit the opening.

50 With this kind of a camera you can see the object you are photographing up to the very instant you snap the shutter.

51 This is a clear gum that is obtained from a tree called the Canada balsam.

Make a box of 1/4 inch thick wood, 6 inches wide, 6 inches long and 7 inches high and have the top of it separate so that it can be lifted off and put on the box. In the middle of the top near one edge cut a hole 1 1/4 inches in diameter and put an electric light socket - to which a cord and plug is fixed - in it as far as it will go and then screw in a nitrogen 100

Fig. 58A. A Home-Made Enlarging Apparatus The Lamp Set In The Top Of The Illuminating Box.

watt electric lamp52 which gives about 75 candle power, as shown at A in Fig. 58.

Cut a hole out of the front board 3 1/2 x 4 1/2 inches and fasten a sheet of ground glass 53 or, better, of opal glass 54 over the opening. Get a sheet of bright tin 6 inches wide and 10 inches long, bend it into a semi-circle and set it in the box so that it will reflect the light from the lamp in front of it through the ground glass screen as shown at B.

52 The Delco Light Co., 52 Park Place, New York, sells these lamps and all other electrical supplies.

53 Ground glass can be bought at a glazier's or you can make it as explained in Chapter IX.

54 Opal glass.

Next make a stand for holding the bromide paper55 which is to be used for the enlargement. About the easiest way to do this is to take a 1 inch thick board 6 inches wide and saw off a piece 12 inches long. Fasten your drawing board to it with a couple of angle blocks as shown at D, and you are ready to make an enlargement.