Feature

  1. Crystals Regulate Radio

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  2. Anniversaries of Science

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  3. Sunspots on Increase

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  4. Purifying Sex Hormone

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  5. Cave Man Treasured Fossil

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  6. Back Matter

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  7. Front Matter

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  8. Free Geniuses, Says Hoover

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  9. Radio Death-Force

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  10. Beyond Einstein

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  11. Ancient Indian Civilization Found in New Mexico

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  12. Beginnings of Maya Culture

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