Feature

Disease Hazards of Africa Also Menace United States

Questions the Value of Care before Childbirth

Value of Infantile Paralysis Vaccine Held Doubtful

Wax-Seeking Expedition to Fly over Sea and Jungles

Largest Photo Map Shows Whole of Connecticut

Scientist Braves Desert to Study 200 Extinct Volcanoes

Crop Control of the Future Will Strive for Increase

Radium Given to Bohr to Honor His 50th Birthday

Delicate Art Works Copied by New Four-Cent Process

New Blood Test Reveals Approach of Lead Poisoning

In Science Fields

America’s Earliest Herbal