Feature

  1. Pellagra Epidemic Threatens

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  2. Jupiter Moon Pulled by Sun

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  3. Front Matter

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  4. Synthetic Thyroid Hormone

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  5. The Platypus

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  6. Watcher of Earthquakes

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  7. School on Wheels

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  8. Byrd’s Hops Will Explore Mystery Land

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  9. Back Matter

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  10. Oil Overproduction

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  11. Abbott Mendel, Darwinian

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  12. Water Available Abroad

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