Feature

  1. [Photograph]: Arachne as Engineer

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  2. Front Matter

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  3. New Machines and Gadgets

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  4. Summer Begins on June 21

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  5. Boys Are Increasing in Upper-Class Families

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  6. Dream World of Students

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  7. Predict New Stable Kinds of Chemical Elements

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  8. Researchers Request Dogs

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  9. Boilers Become Coolers

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  10. Modern Telephony Carrier

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  11. Canners Omit Food Cans

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  12. Check Enlargement Ill

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