History, theory, and practice of the electric telegraph (1866)
Prescott, George B.(George Bartlett),1830-1894 · Boston, Ticknor and Fields · leaf 7
HISTORY, THEORY, AND PRACTICE ELECTRIC TELEGRAPH. BY GEORGE B. PRESCOTT, SUPERINTENDENT OF ELECTRIC TELEGRAPH LINES. THIRD EDITION, REVISED AND ENLARGED. BOSTON:TIOKNOR AND FIELDS. 1866. Entered according to Act of Congress, in the year 1860, by TICK NOR AND FIELDS, in the Clerks Office of the…
Telegraph
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