Feature

Books of the Week

Work of Gibbs, Long Acclaimed in Europe

New Machines and Gadgets

Front Matter

Student Deferment Urged

Hums of Transformers Can Be Controlled

Detector of Flaws in Rail Joints Makes Travel Safer

Foundation Board Named

Sugar Handy Aid for A-Bomb Victims

JATO Rockets Use Smokeless Powder

Five Chemicals Seal Tiny Teeth Openings

[Photograph]: Maps Needed