Feature

  1. New Time for 880?

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  2. First Glances at New Books

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  3. Studies Race Mixture

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  4. Freud Still Active

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  5. Nature Ramblings: Sparrow-Hawk

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  6. Aviation Interest Takes Spurt

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  7. New Bow Plays Four Strings

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  8. Back Matter

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  9. History of Lighting Traced by Science

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  10. Ears Distinguish Close Sounds

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  11. Back Matter

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  12. Emotions Foretell Diseases

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