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Wonders of electricity (1872)

Baille, Jean Baptiste Alexandre, b. 1841, Armstrong, John W., ed · New York, Scribner, Armstrong, and co. · leaf 93

An illustration from Wonders of electricity, 1872, leaf 93
electro-magnet, ac-cording to the will of the one who sends the message. 74 WONDERS OF ELECTRICITY. Consequently this machine requires to be operatedwith the same care as the most sensitive and precisetime-pieces. That clerks, curious to examine themechanism, may not rudely handle the… … Telegraphic Dial. and the needle stopped at any particular letter with-out the aid of electricity. Recourse is had to thisprocedure, when it is seen that from some cause orother the needle of the receiver is not in accordwith that of the sender of the message, and is conse-quently giving false…

Electricity

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