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      Scientific American October 21, 1882

      Sunlight and Skylight at High Altitudes

      • By W. De W. Abney on October 21, 1882

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      More in the October 21, 1882 issue of Scientific American
      • Bourdon's Hydro-Pneumatic Motor Clock
      • On a Supposed Connection between the Heights of Rivers and the Number of Sunspots on the Sun
      • Streatham Hall
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