Feature

  1. Senate Committee Investigates Cancer

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  2. Cecropia

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  3. No Human Progress without Crime

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  4. New Aurora Mystery Solved

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  5. Astronomers Elect

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  6. Describes Longest Eclipse

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  7. Checks Jupiter’s Moons

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  8. Calcium Clouds Spread through Space

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  9. Maker Tells of Large Telescopes

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  10. New Time Method

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  11. Classics of Science: Psychological Measurements of Individual Differences

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  12. Counting Fence Posts

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