Feature

  1. X-Rays Change Heredity

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  2. Back Matter

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  3. Astronomers Told of Comet’s Wandering

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  4. Nature Ramblings: Geranium

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  5. Nature Ramblings: Holiday Goose

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  6. Back Matter

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  7. The Hunters

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  8. Scientists Discuss Bad Habits, Floods and Electrons

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  9. Front Matter

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  10. Forty Mile Holes May Supply World’s Power

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  11. One Wise in Counsel

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  12. Cathode Rays Make Burns

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