Feature

German Health Is Poor Report from London Says

Nature Ramblings: Unnatural Selection

New Machines and Gadgets

Science Clubs of America

Front Matter

Color Photographs at Six Miles Soon to Be Possible

Polio Spread by Humans, Study of Epidemic Suggests

Island of Tissue in Brain Controls the Water Balance

[Photograph]: War Training

Brain Waves Still Go on Fifteen Minutes after Death

Scarce Drug and Food Herbs Can Be Produced in West

Packages Don War Garb