Feature

  1. Classics of Science: Fossils in Old Red Sandstone

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  2. Investigator of Genius

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  3. Back Matter

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  4. X-Rays Diagnose Horse Ills

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  5. Street CO Menaces Children

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  6. Too Many Grapevines

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  7. Heated Water Carries Fish

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  8. Chumming with Tornadoes

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  9. Hall of the Dinosaurs

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  10. The Secret of Synthetic Petroleum

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  11. Building and Flying Model Airplanes

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  12. Skin Registers Emotions

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