Feature

  1. Front Matter

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  2. Phosgene Necessary German Chemical

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  3. Face to Face with a Wasp

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  4. Average Sleep Ration 25 Years

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  5. Report Cure for Mongoloid Idiots

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  6. Chimpanzees Serve Science

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  7. Judge Should Know Prisoner

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  8. Oils for Insulation

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  9. Physical Science in the XVIIth Century

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  10. Classics of Science: The Daguerreotype

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  11. Comets and Meteors May Surround Stars

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  12. Mental Defects in Infants

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