Feature

  1. Pint-Sized Radar Serves Small Boats

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  2. Transistor Hearing Aids Operate at Lower Cost

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  3. Find Survival Limit for Lung to Be Grafted

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  4. First Half Hour Critical Period in Heart Wound

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  5. Make Pituitary Hormone

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  6. Front Matter

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  7. New Operation, Pills for Ulcer Patients

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  8. Nature Ramblings: Deer

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  9. Not Necessarily Commie

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  10. [Photograph]: Tiny Capacitor

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  11. Auxiliary Motor Solves Trolley-Bus Problems

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  12. 1954 Will See Big Polio Vaccine Trials

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