Feature

  1. Tidal Motor Made by Bulgarian

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  2. Gases Dense as Metals in Stars

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  3. New Sounding Method Improved by Coast Survey

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  4. Doctors Doubtful of Cancer Serum

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  5. A Table Trick and What It Teaches

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  6. Organization to Study Tropic Plants

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  7. Educated Snail Learns to Speed

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  8. Medical Association President Criticizes Modern Coddling of Weak

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  9. British Scientists to Meet in Toronto

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  10. Aviettes

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  11. Convention Photos Sent by Wire

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  12. Simple Science by Wow: Butter

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