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Scientific American, Vol. 69, No. 2 (1893) (1893)
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roth & Root boilers attention from engineers. . have 126 tubes four inches in dia- Other interesting exhibits per- meter by 18 feet in length, arranged taining to the useof oil are the oil in courses 14 wide by 9 high. They engines, in which vaporized oil have 7 drums 14 inches in diameter takes… … page #2.) tubes are expand- © 1893 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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