Feature

World War Mental Cases Will Grow Until 1947

Front Matter

Leading Science Journals Pledge Aid to Europe’s War

Air in Stratosphere Is Hot Enough to Boil Water

Rustless Steel Effective at Very High Temperatures

[Photograph]: How They Grow

Doctors Cure One Ailment but Report New Menace

Difference in Cancer Cells Confirmed by Americans

Can Civilization Survive Another World War?

Wilt-Resistant Alfalfas to Be Ready in 1942

[Photograph]: Primitive

Beams of Neutrons Produced by Hole through Water Wall