Feature

  1. New Drug Treatment Gives Hope for Relieving Insanity

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  2. 1931 Leonids Best in Years, Many Astronomers Report

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  3. Bubbling Sand Separates Coal from Heavier Slate

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  4. Bacteria May Have Helped in Formation of Anthracite

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  5. First Glances at New Books

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  6. [Photograph]: Trees Swallowing Boards

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  7. Ink Absorbing X-Rays Aids in Identification

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  8. Nature Ramblings: Potted Plants

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  9. Stone Age Men Made Tools of Rock Crystal

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  10. Infantile Paralysis Selects Special Type of Children

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  11. Why Read from Left to Right?

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  12. Research Hailed as Means to Save Railroad Lines

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