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      Scientific American July 10, 1915

      Modern Substitutes for Butter

      Wholesome Materials that Have Long Been Under Suspicion

      • July 10, 1915

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      More in the July 10, 1915 issue of Scientific American
      • Fine Measuring Tools for Machinists
      • The Manufacture of Condensed Milk, Casein, Etc.—II
      • World's Shipbuilding
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