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Scientific American, Vol. 45, No. 4 (1881) (1881)

leaf 7

An illustration from Scientific American, Vol. 45, No. 4 (1881), 1881, leaf 7
OUS INVENTIONS. things are as nothing compared to his bray. That such a site those of the permanent magnet which forms the handle Mr. William W. Batchelder, of New York city, has tremendous and far-reaching sound should emanate from so of the instrument. Each revolution of the roller produces… … This treatment has been used with great accumulating in the lower end of the box. success in cases of nervous exhaustion, debi- An improved combined ruler and rotary lity, neuralgia, rheumatism, paralysis, etc., and we are When the little blue burro—they are nearly all blue—con- blotter has been…

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