Feature

New Machines and Gadgets

Ainu of Northern Japan Only Remotely Related to Us

First Glances at New Books

[Photograph]: Substitutes

Better Inventions Aid U. S.; Hush-Hush Part of Planning

Jap Totalitarianism Is Not Copied from the Nazis

New Machines and Gadgets

Science Clubs of America

Plastics for Airplanes Get New “Mar” Test

Long-Range Bomber May Bring Population Increase

First Glances at New Books

Front Matter