Feature

  1. 20 Million Photos a Month

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  2. Prisoners May Be Gloomy

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  3. Nature Ramblings: Distinguished Kinships

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  4. Undeveloped Food Supply

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  5. Books of the Week

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  6. Effect of Sugar on Health to Be Studied

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  7. New Machines and Gadgets

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  8. Front Matter

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  9. Bacteriophage Now Visible

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  10. Airplanes Dissolved

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  11. [Photograph]: Lenses Coated

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  12. Refrigeration Treatment for 89 Days Saves Leg

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