Feature

Warn against Blind Use of Penicillin for Colds

Invention Makes Car Put on Own Anti-Skid Cleats

Surgery for 10 Heart Ills

Plane Stall-Proof System

Air Photographs Valuable in Studying Timber Areas

Do Not Burden Scientists with Routine, Is Advised

West Pine Yields Pitch

DDT and Oil Spray Can End Hazards of Black Flies

New Insect Emigrants

Scare over Fits May Lead to New Facts about Brain

Nature Ramblings: Life Everlasting

New Tank Engines Are Small but Powerful