Feature

Hand-Pushed Weeder Invented for Gardens

Brain Waves Show Injury

Sunspot’s Appearance Ends 28-Day No-Spot Period

Over 1,000,000 Soldiers Get Glasses through Army

Ten Scholarships Offered to Outstanding Seniors

Not for Automobiles

Typhus Vaccine Reliable

Indium Used on Planes

Sound-Proofing of Aircraft Needed to Protect Crews

Sound Travels Slower as Temperature Drops

War Photo-Mapping

Airplane Vapor Trails Formed by Condensation