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Water, Double Fork
  1. Two tuning forks A and C pitched respectively to A + C were simultaneously sounded and presented to the water. Both sounds were audible at S.

  2. Dipping Needle

  3. The sounding-board B (Fig 4) was placed on a parlor organ. It was presumed that the vibration of the sounding-board, B, would cause the platinum point P to vibrate in the water contained in the metal cup (C) and thus the sound be reproduced by S.
    No audible effect was obtained at S. I am convinced however that a reconstruction of the apparatus will yield the desired result.

  4. (Thoughts)

  5. The metals P and W (Fig 1) must be the same to avoid converting the arrangement into

[PrevPage] [Next] [INDEX ]  Volume 1   10 Mar. 1876    Page 44  [Source] [ NOTES ]