Feature

  1. Bottlenecks Broken by Use of Inventive Brains

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  2. Old Tin Cans Chemically Exchanged Equally for Copper

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  3. Front Matter

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  4. Sulfone Drug Effective Weapon against Tuberculosis

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  5. Sulfur Fumes Liquefied Give Chemists Useful New Solvent

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  6. Psychology

    Democracy Threatened by Lack of Neighborliness

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  7. WPA Guidebooks Help Search for Birth Records

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  8. Strange Ringed Star Found Resembling Gigantic Saturn

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  9. New Machines and Gadgets

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  10. Analysis of Life Essence Is Now Made Possible

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  11. In Science Fields

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  12. Yellow Fever Vaccination of Army Extends Procedure

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