Simple Telegraph

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“The electric telegraph in its simplest form, consists of an electric circuit connecting he points between which telegraphic intercourse is established, a battery at each point, connected wih this circuit, and two instruments, one for transmitting and the other for receiving electric impluses by with arbitrary sign representing written language are produced.” -Atkinson 1903


Atkinson, Philip Electricity for Everybody; Its Nature and Uses Explained (: The Century Company, 1903) 193


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