Vol. 20 No. #546
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More Stories from the September 26, 1931 issue

  1. Tiny Cellulose Balls May Be Smallest Plant Units

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  2. Indian Writing Moved from Bottom of Future Lake

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  3. Eugenie Hats Demand Feathers; Ostrich Breeding Is Revived

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  4. Ultra-Violet Light and High Frequency Current Harden Steel

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  5. American Archaeologists Make Finds in Italy

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  6. Flash Welding Joins Metal Amid Shower of Sparks

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  7. [Photograph]: In an Armor of Spines

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  8. Six Generations of Poliomyelitis Virus Grown outside Body

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  9. Likes and Dislikes Signalled by Babies’ Feeding Behavior

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  10. Fish Use Their Ears to Maintain Balance

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  11. Metal, Though Good Conductor Now Insulates against Heat

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  12. Textiles May Come from Equadorian “Silk Flower”

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  13. Changing Science Is Leaving Nothing Solid in Universe

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  14. In Science Fields

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  15. Harvest Moon Now Flooding Earth with Excess Light

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  16. Smallpox Threatens Large Part of Country

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  17. Tropical Hurricanes Once Ancient Maya Disasters

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  18. The Great Ice Age: “A Classic of Science”

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  19. Airplanes Enable Geologists to Survey Arctic Copper

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  20. Air Gun Used to Dust Delicate Artifacts

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  21. New Oil for Paints Promised by Safflower

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  22. Nature Ramblings: An American Leopard

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  23. Disappearance of Diphtheria in Few Years Predicted

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  24. First Glances at New Books

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  25. Front Matter

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  26. Faraday’s Research on Metals Anticipated Modern Steel

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