Vol. 57 No. #16
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More Stories from the April 22, 1950 issue

  1. More Critical Minerals

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  2. Books of the Week

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  3. New Machines and Gadgets

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  4. Front Matter

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  5. From Now on: Talents

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  6. Uranium via Test Tube

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  7. Invisible Moisture Films Make Graphite a Lubricant

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  8. Drug Promotes Growth

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  9. [Photograph]: Tom Thumb Laboratory

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  10. Leg Cramps Preventive

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  11. Infecting Particles Have Been Seen

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  12. More Chemical Conquests

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  13. Periscope Examines Gases in Jet Engine Exhaust

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  14. First National Science Fair to Be Held

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  15. Women in Chemistry

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  16. Ammonia Storm Control

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  17. Mice with Older Mothers Have More Cancer Resistance

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  18. DDT Does Not Poison by Absorption through Skin

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  19. Chemical Guards against Cancer Danger from Sun

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  20. Iceberg Menace Grows

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  21. [Photograph]: Chile Copper Cache

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  22. First Nerve Impulse Clears Way for Others

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  23. In Science Fields

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  24. Mars, Saturn Still Visible

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  25. Wheel-Mounted Dustpan Operates with One Hand

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  26. Origin of Food Allergies?

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  27. Photo-Electric Eye Heart

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  28. Last La. Crane Abducted

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  29. Man to Outstrip Nature

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  30. Squirrel, Frost Damage Mistaken for Oak Wilt

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  31. Nature Ramblings: Scarlet Tanager

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