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＜E-Book＞
The electro-magnetic telegraph : with an historical account of its rise, progress, and present condition : also, practical suggestions in regard to insulation, and protection from the effects of lightning : together with an appendix, containing several important telegraphic decisions and laws / by Laurence Turnbull
(Making of the modern world. Part 2)

Edition	2nd ed., rev. and improved.
Publisher	Philadelphia [Pa.] : A. Hart
Year	1853
Size	1 online resource (viii, [17]-264 p., [2] leaves of plates) : ill
Authors	*Turnbull, Laurence 1821-1900
Subjects	LCSH:Telegraph
Notes	"Illustrated by numerous engravings." Includes index Reproduction of the original from the Rare Book and Manuscript Library of Columbia University Electronic reproduction Farmington Hills, Mich. Cengage Learning 2011 Available via the World Wide Web Access limited by licensing agreements HTTP:URL=http://reo.nii.ac.jp/hss/2100000000324360

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