Feature

  1. Infantile Paralysis Waxing

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  2. Mars’ Canals Not Man-Made

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  3. Anniversaries of Science

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  4. A Wineglassful of Brains

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  5. Cluster Specialist

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  6. Vesuvius Rumbles

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  7. Rubber for United States?

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  8. Heat from Heart Beat

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  9. Front Matter

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  10. Star Games

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  11. First Glances at New Books

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  12. Lamp Tells Sound Speed

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