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      Scientific American April 03, 1909

      Wave Motion Visually Presented

      Projection Demonstration to Accompany Lectures on Wave Motion

      • By Will C. Baker on April 3, 1909

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      More in the April 03, 1909 issue of Scientific American
      • Experimenting with Animals and Plants
      • The Efficiency of Aerial Propellers
      • A Noteworthy Anthropological Discovery
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