Feature

  1. Black Magic of Witchcraft Reappears in England

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  2. Scientists Begin Occupying Stations for Polar Year Work

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  3. In Science Fields

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  4. Real “Artificial Silk” Is Promising Possibility

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  5. Stomach Ulcers Produced by Protein Starvation

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  6. Gland Extract Increases Body Growth but Not Brain

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  7. Changing Constellations and Meteors Featured in Skies

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  8. War Is Not Human Instinct Prominent Psychologists Hold

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  9. Extra Hours of Moon Affect Reproduction of Animals

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  10. Front Matter

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  11. Rapid Evolution Produces New Insect Species Almost Daily

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  12. The Corliss Engine: “A Classic Invention”

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