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      Knowledge is Power

      Scientific American February 24, 1894

      “Those Cocoons Resembling Pine Cones ?”

      • By C. V. Riley on February 24, 1894

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      More in the February 24, 1894 issue of Scientific American
      • Adulterated Linseed Oil
      • Comparative Value of Manures for Potatoes
      • Method of Making Standard Sperm Candles
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