Feature

  1. Nature Ramblings: American Christmas Plant

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  2. Books off the Press

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  3. Front Matter

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  4. Psychogenic Rheumatism

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  5. [Photograph]: Straight Lines to Curves

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  6. Influenza Increases Suddenly in Four States

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  7. Milky Way Thicker

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  8. Rainbow Colors Obtained in Electroplating

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  9. Seasickness Preventive

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  10. Reducing Gun Recoil

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  11. [Photograph]: Bandbox for Propellers

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  12. Flying Glass Hazard

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