Feature

New Machines and Gadgets

Waxing Glass Filaments Makes Firmer Thread

Simulated Shipwreck Tests Life Rafts and Equipment

“White Noise” in Planes Studied by Scientists

Rules Given to Prevent Infantile Paralysis Spread

Accidents at Minimum

Gray Hair Vitamin Tested

In Science Fields

Powder Hard as Diamond

Infantile Paralysis Cases Continue to Increase

[Photograph]: Production “V”

Nylon to Be Used on Undergear of Warplanes