vantage. extending forward and through a cut in the guide block. of his method is a four-sided revolving mirror erected upon Fig. 1 is a perspective view showing the device when used The curative properties of an electric current may be iron pillars. The mirror revolves at from one hundred and as a… … electrical energy, as in the magneto- The ends of the movable piece are MURPHY'S BOOK-RACK AND BOOK-REST. electric machine. Magneto-electric rendered noiseless by rubber wash- machines have not generally been ers. The rack is neatly made in fifty to two hundred and fifty revolutions a second. The I…
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