Feature

X-Rays Spot Emotional Digestive Upsets Also

Half Nation’s Bright Boys Available to Services

Protect from Poisoning

[Photograph]: New Blind-Flying Goggles

New Hemophilic Disease

Engineers to Learn Soviet Air Strength

No Visitors from Space

Electron Microscopy Speeded by New Devices

Alfalfa Grows on Sand

[Photograph]: Testing Spray Chemicals

Mental Crippling of Polio

New Machines and Gadgets