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Scientific American, Vol. 62, No. 17 (1890) (1890)

leaf 7

An illustration from Scientific American, Vol. 62, No. 17 (1890), 1890, leaf 7
ducing stylus. The effect of this construction is to Any reader of the daily papers must have noticed When railways were first introduced in the interior within tbe last few months frequent mention of a new of Mexico, it is related, says the Mexican Financier, instrument of the phonograph type,… … and the terrible inundation came, which ing the points of rest or nodes where were interpreted to have been indica- little or no vibration occurs. This instrument, which has been named tions of disapproval of the proposed in- quality or timbre of the sounds originally uttered into novation on the…

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