Feature

  1. Front Matter

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  2. Blue Dye with Cancer Affinity Aids X-Raying

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  3. Three Giant Eyes

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  4. Sex Shows in Human Cells

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  5. Clue to Sun’s Heat

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  6. Chickens Make Protein

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  7. Undiagnosed Cancers

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  8. Color Test on Blood Detects Disease of Liver

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  9. Leonardo Da Vinci, Scientist

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  10. Spot 1952’s Second Comet

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  11. Reprieves but No Cures

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  12. Birth Control in Rats

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