Feature

  1. Teeth Tell Man’s History

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  2. Voice Photographer

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  3. Disease from Raw Fish

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  4. X-Rayed Seeds Help Crops

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  5. 75-Mile Gun Mile Out

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  6. Homes as Weather Bureaus

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  7. Evolution of Whales

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  8. Sun Laziest Now

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  9. Errors Corrected

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  10. Weevil Waves Start Small

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  11. [Photograph]: Dr. George D. Birkhoff

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  12. Tree Efficiencies Measured

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