Feature

  1. Visits Unconquered Maya Tribe

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  2. Volcano Explodes

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  3. Age of Man Has Not Yet Arrived

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  4. New Telescopes for New Universes

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  5. New Aurora Mystery

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  6. Radiovision in Homes This Fall

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  7. Cancer Control by Blood Alkalinity

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  8. Rubber, Alcohol by Cathode Rays

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  9. How Eyes of Races Differ

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  10. Polar Expedition Lost

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  11. Mathematical-Minded

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  12. Nature Ramblings: Kingfisher

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