Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 102
Fig. 150. You make an artificial rainbow GILBERT LIGHT EXPERIMENTS 99 … Fig. 151. You see a devil experiment will showbest in your darkenedroom. FUN AT NIGHTExperiment No. 95. A changing devil. Cuta little devil out ofcardboard and arrangeas shown in Fig. 151.Hold the red glass in front of the candle at the right. Is the devil at the right red andis the devil at the…
Light · Scientific recreations
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