Feature

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

Enzyme in Body Prevents Squandering of Food Store

Mayo Doctor Urges Pilots to Take up Hobbies

‘Flu Virus Revealed