Feature

  1. Biology

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  2. Calendric Reform in Yucatan

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  3. Shadows from a Higher Dimension

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  4. Hepatitis: No More Guilt by Exclusion?

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  5. Back Matter

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  6. Front Matter

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  7. Science on the Air

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  8. Enigmatic Engravings

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  9. Fire Hits a Snag

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  10. Equality vs. Liberty

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  11. Fossil Find Fleshes out Early Human

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  12. Rock-Filled Fossils Get a New Image

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