Feature

War Gas Chemical Called Practical for Dropsy Relief

New Machines and Gadgets

Books of the Week

Find Asteroid’s Distance

Polio Danger Period Month after Immunizing “Shots”

One Radar Locates Storms

Clock Varies Less than One Ten-Thousandth of a Second

Tooth Snatching Vetoed

Processing Food with Natural Flavor Patented

Military Planes All-Jet

Corona Laboratories Established by NBS

Flare Stars May Also Hiss