Feature

Boring into Wood

Not Poisonous

Ultrasonic Sound Waves Detect Flaws in Metals

Parasite Poses Problem

“Doodlebug” Hunts Oil

Fever Plus Penicillin Has More Anti-Syphilis Effect

Cross-Wind Landing Gear

Home Heating Studied

“Superfluid” Is Neither Liquid, Solid nor Gas

Jets Blast Well Casings

WHO Plans Its Program

Selenium Produced in New Fibrous “Wool” Form