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Instructions to operators on U.S. seacoast telegraph lines [electronic resource].
United States. Weather Bureau
[Washington] : [publisher not identified], 1897.
1 online resource (26+illus. pages), digital, PDF file
Electronic resource (PDF)
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United States. Department of Agriculture
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.
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| catkey: 18662109