Feature

  1. Seeds Are Sown by Planes

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  2. In Science Fields

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  3. Books of the Week

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  4. New Food-Saving Varnish

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  5. [Photograph]: Plant Tissues Grow in Culture

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  6. New Machines and Gadgets

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  7. Front Matter

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  8. Secret of Gasoline Jelly

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  9. Rare Elephant Shrews Are Captives in New York Zoo

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  10. In Science Fields

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  11. Books of the Week

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  12. New “Blue Baby” Disease

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