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Scientific American, Vol. 40, No. 23 (1879) (1879)

leaf 5

An illustration from Scientific American, Vol. 40, No. 23 (1879), 1879, leaf 5
teresting modifications of “Miracle,” and it is a curious fact that while in the phono- necessary to fill this receiver with highly compressed air the apparatus either for the extension of the principle, de- might be fixed on the surface, or, if preferred, at the bottom graph the words… … make the recciver too large, a which bears upon its upper small hydraulic pump might A SIXPENNY PHONOGRAPH. surface a phonographic em- be connected to it, and by bossed record corresponding forcing water through the to a certain word or sentence, by which it was originally valve opening upward, the…

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