Feature

  1. Kepler’s First Discovery: “A Classic of Science”

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  2. Kepler’s Memory Honored at Tercentenary of Death

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  3. Leprosy Is Being Attacked by Chemical Warfare

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  4. Few Mines Protected from Explosions by Rock Dusting

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  5. Glandular Extract Fails to Cure Cancer in Mice

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  6. Notebook of Science

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  7. New Orleans Earthquake Located by Old Method

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  8. Guayule Produces Rubber Only When Its Life Is Hard

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  9. Nature Ramblings: Dormant Butterflies

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  10. Waste Natural Gas Used to Increase Oil Well Yield

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  11. First Glances at New Books

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  12. Front Matter

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