Feature

  1. Plastic Balls Substitute for Heart Valves

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  2. Active despite One Lung

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  3. Surgery on Beating Heart

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  4. Strikes Are Preventable

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  5. In Science Fields

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  6. Clue to Vanished People

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  7. New Machines and Gadgets

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  8. Skin Burns from X-Rays Preview Atomic Exposures

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  9. Predict New Energy Sources at Laboratory Dedication

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  10. TV Noise Is Man-Made

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  11. Dramamine Relieves Migraine and Nausea

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  12. Averting Polio Damage

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