Feature

Japan Fights Nazi Style with Feudal Hang-over

Sulfa Drug May Protect U. S. Army against Plague

Frequency Modulation Applied to Telegraph

Japs Copy Nazi and U. S. A. Planes

[Photograph]: Largest Flying Boat

[Photograph]: Hard to Hit

[Photograph]: Bright Meteor

Front Matter

New Infantile Paralysis Treatment Gets Approval

Million-Volt X-Ray Used to Change Heredity

Phonetic Way of Writing Thai Language Helps Foreigners

War Slows, but Does Not Stop Astronomers’ Search of Skies