Two upright pieces are cut from 3/4 in. material 2 in. wide and 5 ft. 9 in. long and two blocks are fastened on the ends of each that are to be used for the bottom, as shown in Fig. 1.  These blocks are each 2 by 6-in. and 1/4 in. thick.  The base is made from a piece 3/4 in. thick, 3 in. wide and 5 ft. 4 in. long.  A crosspiece 3/4-in. thick, 3 in. wide and 12 in. long, cut in the shape shown in Fig. 2, is screwed on each end of the base with 3-in. wood screws, as shown in Fig. 3.  Four blocks 1/4 in. thick, 1 in. wide and 3 in. long are nailed to the sides of the base piece parallel with and at a distance of 2 in. from the end of same.  This forms a slot, Fig. 4, to receive the pieces nailed to the ends of the uprights.  To secure a rigid frame it is essential that this, joint be accurately put together.

Procure a piece of thick tin or brass and make two pieces like the pattern shown in Fig. 5, with each projection 3-in. long.  The width of the crosspiece is 1 in. and the single projection 3/4 in.  These are bent and nailed, one on each end of a piece of wood that is 1/4 in. thick, 1 in. wide and 5 ft. long, as in Fig. 6.  These will form two pockets that will fit over the tops of the uprights.  The frame is put together as shown in Fig. 7.  Any background that will hang straight without need of being stretched can be hung on this frame.

[Illustration:  Fig.6 —­ Details of Background Frame]

** Home-Made Kite Reel [156]

This kite reel is constructed from two old pulleys and a few pipe fittings.  The large pulley is about 14 in. in diameter, on the face of which are riveted flat strips of iron with extending arms.  These arms are reinforced by riveting smaller pieces from one to the

[Illustration:  Old Pulleys and Pipe Fittings]

other, which connects all arms together on both sides of the wheel.  Mounted on the shaft with the pulleys is a guide for the kite wire or string.  The photograph shows that this guide permits of being moved entirely over the top of the reel.  The smaller pulley is attached to the shaft and used as a brake.  The brake is used only when running out the wire or string, first removing the crank.

** Attaching Runners to a Bicycle for Winter Use [157]

Instead of storing away your bicycle for the winter, attach runners and use it on the ice.  The runners can be made from 1/4-in. by 1-in. iron and fastened to the bicycle frame as shown in the sketch.  The tire is removed from the rim of the rear wheel and large screws turned into the rim, leaving the greater part of the screw extending.  Cut off the heads of the screws and file them to a point.  The rear runners should be set so the rim of the wheel will be about 1/2 in. above the runner level.  —­Contributed by C. R. Welsh, Manhattan, Kan.

[Illustration:  Bicycle Fitted with Runners for Snow]

** A Paper That Makes Green Prints [157]

A coating for ordinary paper that is said to give green prints is made with a two per cent solution of gelatine, says Photography, and sensitized with the following solution: