Feature

  1. Sugar from Wood

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  2. Back Matter

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  3. Dean of American Surgeons

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  4. Sunlight Destroys Vitamins

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  5. Wells Bewildered

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  6. An Almost Human Clock

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  7. First Glances at New Books

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  8. Home-Made Toys Best

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  9. TB Vaccine Saves Babies

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  10. Back Matter

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  11. Nature Ramblings: Autumn Flights and Falls

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  12. Rubber from Florida?

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