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  1. Carbon Dioxide May Make Drinking Safer

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  2. United States Supplies Trees to Fight Leprosy in Tropics

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  3. The Use of “Dog” in Names

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  4. Encke’s Comet Returns to Neighborhood of Earth

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  5. Drought-Crazed Jackrabbits Overrunning Idaho Ranches

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  6. Psychological Research Planned at Yale University

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  7. Astronomers Divided on Reality of Martian Canals

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  8. 160152

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  9. 77514

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  10. “Birth Control” among Plant Lice Due to Light

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  11. Desert Insects Have a Hot Time

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  12. Psychologist Explains Mystic Phenomenon

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