Feature

  1. Find Parent of Vitamin D

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  2. Record Borax Deposit

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  3. Comet Returns for Visit

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  4. Roman Wall Mystery

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  5. Front Matter

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  6. Minerals Enter Politics

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  7. Feeling Speech Aids Deaf

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  8. Physician and Philosopher

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  9. Anniversaries of Science

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  10. Tests Show Effect of Noise on Nerves

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  11. Chinese Art Languishing

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  12. New Relay Most Sensitive

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