Feature

  1. Front Matter

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  2. Scientists Pushed Around

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  3. Atomic Waste Disposal

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  4. “Tagged” Atoms Show Plants’ Phosphate Use

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  5. Heredity Chemical Found

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  6. Staples Prevent Limping

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  7. [Photograph]: Light Pipe

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  8. Cockroaches Found to Harbor Food Poison

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  9. Sound Washes Clothes

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  10. Drugs Don’t Cure Heartburn

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  11. What Is Happiness?

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  12. [Photograph]: Music on Tape

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