Feature

First Glances at New Books

Volume Information

Front Matter

Extremely Powerful X-Rays Made with Speeding Electrons

National Zoological Park Takes Raid Precautions

Propylene Glycol Mist Might Stop Influenza Epidemics

Brain Injury Might Come from Vitamin A Lack in Infancy

National Lectureships Announced by Sigma Xi

You Can Make Color Pictures with Your Roll-Film Camera

[Photograph]: Power to Be

Birth Rate Is up, Death Rate Unchanged

Five Eclipses in 1942