Mechanics of Magic


By "DUNNINGER"
AN electric lamp, consisting of a tubular fixture, containing a battery, with a switch operable from the bottom, and a small globe, socketed beneath an inverted glass hood (such as illustrated) has recently been placed upon the market, and is securable at every large electrical supply house.
Should the mechanically inclined reader, however, prefer, the diagram will enable him to construct one of these, with but little difficulty. As will be noticed, the lighting and extinguishing of the bulb depends upon the plungerlike projecting peg arrangement at the bottom of the fixture. An excellent "spirit" effect is obtained by causing this light to mystically go on and off, guided, apparently, only by the will of the wonder worker.