Feature

  1. Mathematician as Motorist

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  2. Pale Leaves: Few Vitamins

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  3. Gifted Children a Problem

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  4. Crystals Regulate Radio

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  5. Anniversaries of Science

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  6. Sunspots on Increase

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  7. Purifying Sex Hormone

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  8. Cave Man Treasured Fossil

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  9. Back Matter

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  10. Front Matter

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  11. Free Geniuses, Says Hoover

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  12. Radio Death-Force

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