Feature

  1. Smoke and Ultraviolet Light

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  2. Mound-Builder Weavers

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  3. Liquid Propels Rockets

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  4. Classics of Science: Franklin Plays with Electricity

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  5. Marriage and Death

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  6. Anti-Vitamin May Cause Rickets

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  7. U. S. Has Most Accidents

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  8. Institute for Geography and History

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  9. First Glances at New Books

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  10. Lindbergh Flights to Discover Lost Cities

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  11. Classics of Science: Galton on Heredity

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  12. Nature Ramblings: Red Haws

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