Feature

Inflated “Doughnuts” Make Landing on Water Possible

Printed Wire for Radios

Man Owes Civilization to Adaptibility of Mind

Radio Waves to Give Facts about Air Masses Overhead

Relief for Polio Symptoms

New Auto Engine Uses One-Third Less Gasoline

[Photograph]: Fire Stop

In Science Fields

Atomic Age Alarm

Oxygen, Man’s Life-Breath, Speeds Steel Production

Front Matter

Cosmic Rays Make Carbon