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 book-rack, and Fig. 2 is a vertical transverse section adapted to the… … electrical energy, as in the magneto- The ends of the movable piece are MURPHY’'S BOOK-RACK electric machine. Magneto-electric rendered noiseless by rubber wash- machines have not generally been ers. The rack is neatly made in considered as efficient for curative purposes as batteries, on fifty to…
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