Feature

  1. New Saliva Test Indicates Likelihood of Tooth Decay

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  2. Two National Soaring Meets Planned for Present Year

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  3. [Photograph]: A Beach of Dead Fish

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  4. Sterilization Would Not Wipe out Mental Disease

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  5. Big Business (B. C.) Invented Writing: Because It Had To

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  6. Chemistry, Research Built Quarter of U.S. Industry

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  7. In Science Fields

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  8. First Glances at New Books

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  9. Nature Ramblings: Winter Usefulness

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  10. [Photograph]: Lasting Impression

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  11. Radiant Heating Makes High Room Temperature Unnecessary

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  12. [Photograph]: A Long Blast

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