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Scientific American

April 24, 1915

1 min read

Saving Eight Million Tons of Coal a Year

A Hydro-Electric Development That Uses a Head of 4,000 Feet

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Scientific American Magazine Vol 112 Issue 17This article was originally published with the title “Saving Eight Million Tons of Coal a Year” in Scientific American Magazine Vol. 112 No. 17 (), p. 382
doi:10.1038/scientificamerican04241915-382
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