Vol. 39 No. #4

More Stories from the January 25, 1941 issue

  1. Research Is Most Fundamental to Obtaining Air Supremacy

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  2. National Defense Means More Jobs for Handicapped

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  3. America’s Defense Plans Include Civilian Welfare

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  4. Drug Manufacturing Called the Offspring of Wars

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  5. [Photograph]: Vitamin K Discoverer

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  6. Influenza Epidemic May Reach 1929 High Level

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  7. Evolution under Attack by Nazis in Germany

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  8. Robot Could Find Own Food and Water, Refill Itself

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  9. U.S. Self-Dependence Stressed in Plant Industry Report

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  10. Orchid Imports from Europe Now Cut off by War

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  11. Commonwealth Fund Backs “Long Shot” Researches

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  12. In Science Fields

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  13. Fie Planets Shine

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  14. Find Individual Differences Even among Paramecia

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  15. Race Dogmas Challenged in Wallace’s Report

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  16. Sex of ‘Possums Modified with Hormones after Birth

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  17. Canadian Science Supports Dominion’s War Effort

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  18. Increase in Output Would Lower Unit Cost of Steel

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  19. Wood Can Be Converted into Easily Bent Plastic

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  20. Nature Ramblings: Patchwork Forests Best

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  21. Oldest Home in East Found in Blue Ridge Mountains

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  22. First Glances at New Books

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  23. Front Matter

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  24. Chemical Treatment Tried for Infantile Paralysis

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  25. Exhibit Shows Space Ship as Viewed by Scientists

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