Vol. 38 No. #3
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More Stories from the July 20, 1940 issue

  1. [Photograph]: Powerful

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  2. Forest Service Prepares for Worst Fire Season in Years

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  3. Frustrated Forest Folk Set Fires for Excitement

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  4. Breakdown of Cooperation Most Damaging Effect of War

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  5. Find Quantity of Electricity in Single Lightning Bolt

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  6. Plant Virus Demonstrated with Electron Microscope

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  7. Uncle Sam Is Streamlining, Mechanizing Civil Service

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  8. Radio Operators May Be Fingerprinted by Government

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  9. Hormone Bank Treatment Gives “Miraculous” Results

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  10. [Photograph]: Air Conditioning for Insects

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  11. In Science Fields

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  12. Electric Shock, a New Treatment

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  13. Cure for Bubonic Plague Seen in New Chemical

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  14. Ability to Make Vitamin C Linked with TB Resistance

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  15. Plant Growth Shown Fast with Amateur Movie Outfit

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  16. Radium-like Substances Produced Inexpensively

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  17. Protein Migrations May Aid in Diagnosis

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  18. Only by Continuous Effort Can Disorder Be Prevented

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  19. Nature Ramblings: Sizes of Seeds

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  20. Defense Requires Knowledge, Organized and Implemented

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  21. First Glances at New Books

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  22. Front Matter

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  23. Develop New Cancer Serum That May Aid Diagnosis

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  24. Anti-Poison Ivy Cream Made by U. S. Public Health Service

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