Feature

  1. “Unfitness” Not Encouraged

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  2. Jupiter Moon Pulled by Sun

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  3. Honey-Cask Ants

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  4. Anniversaries of Science

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  5. School on Wheels

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  6. All Populations Grow Alike

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  7. Back Matter

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  8. Do You Know about Magnets?

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  9. Lizards Preserved in Paraffin

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  10. Abbott Mendel, Darwinian

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  11. Back Matter

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  12. Front Matter

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