Feature

  1. [Photograph]: New Comet

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  2. Uneven Chromosome Split

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  3. New Machines and Gadgets

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  4. Pain in the Chest Not Always from Heart

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  5. British Rain Starts as Ice High Up

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  6. Colds May Lead to Polio

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  7. Front Matter

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  8. Good Fuel from Lignite

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  9. Two New Chemicals May Protect Apples and Peaches

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  10. Books of the Week

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  11. Rise and Fall of Animals Is Chance

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  12. Climate Changed in 1300 A.D. in Europe

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