Feature

  1. School for Dogs

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  2. Make Pituitary Hormone

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  3. Front Matter

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  4. New Operation, Pills for Ulcer Patients

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  5. New Machines and Gadgets

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  6. Underwater Murkiness Removed by Filtering

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  7. Transistor Hearing Aids Operate at Lower Cost

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  8. Sewage-Grown Algae

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  9. Stereophonic Sound

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  10. Find Survival Limit for Lung to Be Grafted

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  11. First Half Hour Critical Period in Heart Wound

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  12. Dentists Now Using 3-D

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