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Bombing Planes to Fight Fires with Chemicals

Nature Ramblings: War among the Elms

Best Books and Best Sellers Written by Young Authors

First Glances at New Books

Unlimited

Back Matter

Front Matter

Importance of Heredity as Cause of Cancer Stressed

Photographic Improvements for Eclipse Expedition

Unmarried Persons More Prone to Mental Disease

Mongolian Idiots Have Special Finger Markings

Brain Waves Provide New Clue to Mongolian Idiocy