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Scientific American, Vol. 88, No. 17 (1903) (1903)

leaf 8

An illustration from Scientific American, Vol. 88, No. 17 (1903), 1903, leaf 8
ng telephone,’’! that is to for mistake, because your words are automatically to open the eyes of all our physicists, scientists, and say, a telephone that records and reproduces messages recorded, and you can make your message so private theoretical men on the question of the molecular char-… … along horizontally, touching the steel wire, while the cylinder revolves as magnets ; E, electric motor, A LARGE TAPE TELEGRAPHONE FOR RECEIVING in a phonograph. MANY MESSAGES, On speaking into a telephone trans- mitter joined on the circuit at one end CIVIL ENGINEERS. of the line, the undulatory…

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