Feature

  1. Inert Krypton Gas Made to Combine with Chlorine

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  2. Family History May Be Useful Guide in Choosing Vocation

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  3. Fifty Million Years of Wild West

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  4. In Science Fields

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  5. Quinine from Peruvian Bark: “A Classic of Science”

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  6. Scientist Directs Huge Magnet in Attack to Smash Atom

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  7. Life Expectancies for Machinery Worked Out

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  8. Whooping Cough May Have Dual Personality

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  9. Nature Ramblings: Woolly Bears

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  10. Bacteria Made to Change Forms by Change of Food

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  11. Mt. Washington Station Begins Work for Winter

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  12. Front Matter

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