Scientific American. 260 [APRIL 26, 1879 EDISON’S ELEOTEOCHEMICAL TELEPHONE, the transmitter is not only perfectly reproduced by the mica cated appearance, in consequence of the transmitting carbon loud voice. surpasses for power and clearness of articulation every other Mr. Edison has found that… … is ned with platinum on those surfaces which are in con- 858,692, an increase of 1,810,126 head over the preceding tact with the mixture, which ig kept in a moistened condi- year. According to a statement of the Commissioner of tion. Upon the upper circumference of the cylinder, which Ag-iculture,…
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