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The German Submarine Raid Off Our Coasts, Spirit and Purpose of the Hay Army Bill, and more

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Scientific American Magazine Vol 115 Issue 17This article was originally published with the title “The German Submarine Raid Off Our Coasts, Spirit and Purpose of the Hay Army Bill, and more” in Scientific American Magazine Vol. 115 No. 17 (), p. 364
doi:10.1038/scientificamerican10211916-364