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      Scientific American December 02, 1916

      Observations on the Economy of the House Spider, Tegenaria Atrica

      Spider, Theodore Atrica

      • By Theodore Savory on December 2, 1916

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      More in the December 02, 1916 issue of Scientific American
      • Allotropic Changes in Iron and other Metals
      • The United States Lighthouse Service—II
      • An Apparatus for Strengthening the Lungs and Improving Respiration
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