Feature

  1. Miniature Electron Tubes Already in War Use

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  2. Normal Foot Lengths

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  3. Nature Ramblings: Unprofitable Islands

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  4. Used like Radar

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  5. New Heaters for Buses May Use Air Conditioning

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  6. Un-Sticking Wheat Starch by Use of Sulfur Dioxide

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  7. Books of the Week

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  8. Arthritis Findings Help Explain Pain, Tenderness

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  9. Weapons for Future Wars

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  10. Books of the Week

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  11. Fermented Grass Leaves Produce New Beverage

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  12. New Machines and Gadgets

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