Feature

Sonar Defeated Subs

In Science Fields

Germ-Free Animals

Tidal Wave Caused by Quake off Unimak Island

Forecasting for Radio

Smokeless Coal Furnace Will Go on Market Soon

Science at Parting of Ways

Germs of Two Types Kill Japanese Beetles

Improved Methods for Extracting Cottonseed Oil

Scientists and Peace

Front Matter

Civilian Control Demanded