Feature

  1. First Glances at New Books

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  2. Cuts Destroy Uncle Sam’s Photographic Laboratory

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  3. Alabama Expedition Finds 40 Unknown Indian Sites

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  4. [Photograph]: Automatic Chemistry Experiment

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  5. Electrical Gage Measures Springy Rubber Articles

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  6. On the Science Front in Washington

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  7. Swiss Adds Iodine to Garden to Prevent Goiter in Family

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  8. “Wallace’s Line”: “A Classic of Science”

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  9. 200,000,000-Year-Old Track Tells Tale of Insect Tragedy

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  10. Protons Seen as Source of New Atomic Particles

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  11. New Electric Roof of World Found by American Physicists

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  12. Big Tree of Tule Re-Examined; Claimed as World’s Greatest

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