Feature

  1. New Device to Measure Ceiling

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  2. The Labyrinth of Minos: A Classic of Science

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  3. Cottonseed, Cheap Pellagra Preventive

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  4. “Ruins” of Nature

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  5. In Various Science Fields

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  6. Psychologist Teaches Cats to Love Rats

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  7. Front Matter

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  8. Train Dispatchers with Shifting Eyes

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  9. Fortune for Man Who Can Make Rain

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  10. Where Is the Noise?

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  11. First Glances at New Books

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  12. Strictly American

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