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      Scientific American September 1917

      The use of Titanium in Steel Castings

      • By W. A. Janssen on September 1, 1917

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      More in the September 1917 issue of Scientific American
      • A Qualitative Determination of the Reflection Coefficients of some Metals in the Schumann Region
      • Petroleum in Assam
      • The Menace of the Rodent
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