Feature

  1. Rubber off the Roads Could Be Salvaged

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  2. Amber-Entombed Ants Resemble Living Species

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  3. Haystack Chemical Remedy May Have Wide Usefulness

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  4. Talcum-Powder Operation Aids Heart Disease Victims

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  5. In Science Fields

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  6. New Machines and Gadgets

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  7. Frozen Foods with Flavor Produced by New Method

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  8. Front Matter

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  9. “Cranks” Visiting Washington Are Mostly Harmless, Quiet

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  10. [Photograph]: 1942 Duck Stamps Go on Sale July 1

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  11. Great Ship’s Propellers Are Delivered on the Dot

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  12. New Machines and Gadgets

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