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Modern Practice of the Electric Telegraph

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Link Title: Modern Practice of the Electric Telegraph Open in a new window
Link URL: http://www.insulators.com/books/mpet/
Link Details: The entire 19th century book by Franklin Pope is viewable at this site. This was the standard reference book used by the U.S. Signal Service.
Category: Top : Society : History : By_Topic : Science : Engineering_and_Technology : Telegraphy
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Modern Practice of the Electric Telegraph