An Improved Method in the Art of Signalling for Military & Scientific Purposes ...: Finley's Heliotrope Or New Helio-telegraph Manufactured by the Amer. Helio-telegraph & Signal Light Co., 1887 (Google eBook)

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1887 - Heliograph - 32 pages
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Page 4 - ... can well be doubted whether the great campaign, which exposed the great weakness of the enemy and propagated the seeds of the coming dissolution of the rebellion, could have been executed for months later. In connexion with this transaction, General Sherman states: "In several instances this corps (signal corps) has transmitted orders and brought me information of the greatest importance that could not have reached me in any other way. I will instance one most remarkable case. When the enemy...
Page 4 - ... the field. An army can have no better outpost from which to watch the movements of an enemy than a signal station and with a practiced officer at such a position no force can move without being detected.

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