Feature

  1. Archaeologists Begin Excavation of Maya Cities

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  2. Violins

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  3. A Pin Falls

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  4. Astronomers Debate Einstein’s Shift of Solar Spectrum

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  5. The Astronomy of the Atom

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  6. An Unfinished Paper

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  7. Plant Explorer Finds New Barleys and Wheats

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  8. Two Types of Temperament

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  9. Important Finds at Ur of Chaldees

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  10. Research for Better Lighting Inaugurated

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  11. 58962

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  12. Pure Vitamin Isolated for First Time

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