Feature

  1. Laughing Gas: “A Classic of Science”

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  2. Exposition to Show Monte Alban Jewels

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  3. Cause of Happiness Sought by Psychologist

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  4. In Science Fields

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  5. Contents of “Empty Space” Revealed by Colors of Nebulae

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  6. Plant Parts Move as Decisively as Fingers

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  7. Industry Must Adjust Itself to Country’s Slowing Growth

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  8. First Glances at New Books

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  9. World’s Fiercest Fighters Called “Ladylike” Men

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  10. Mental Disease Develops from Early Infancy

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  11. 151-Word History of Science Written on Building Wall

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  12. Front Matter

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