History, Theory, and Practice of the Electric Telegraph
I' I Si F C|or«eU InioerBita Sthrary 3ti!aca, S^ew fartt Charles H. Hull Cornell University Library arV18590 History, theory, and practice of tlie eie 3 1924 031 307 196 olin.anx The original of tliis book is in tine Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31 924031 3071 96 HISTORY, THEORY, AND PRACTICE OP THE ELECTKIC TELEGEAPH, ft BY GEOEGE B. PRESCOTT, gUPERUtTENDENT OF ELECTBIC TELEOKAPH LINES. FOCETH EDITION, REVISED AND ENIAKGED. BOSTON: TIOKNOR AND FIELDS. : Entered according to Act of Congress, in the year 1860, by TICKNOK AND FIELDS, in tlie Clerk's OiBce of tlie Distijct Court of tlie District of Massacliusetts. tTniversity Press, Cambridge Electrotyped and Printed by Welch, Bigelow, & Co. PEEFACE. Theee is no subject upon which the American public should be better informed, and none, perhaps, in which it should feel greater pride, than in that of the foremost invention of the age, the Electric Telegraph ; for aside from the fact that three of the best systems in use are American inventions, and that to our countrymen is due the credit of producing the first successful recording elec- tric telegraph, it is more generally used in this country than in any other, and probably more than in all others combined, for the common convenience of mankind. In Europe, with the exception of Great Britain, the use of the telegraph is almost wholly under the control of the governments, and its use restricted by the high rates of tolls to the wealthier classes, while in this coun- try it is alike open to all, and telegraphic despatches are " household words " among the poorer as well as the wealthier citizens.
[Show full text]