Feature

Radio Programs Listened to Recorded by Home Receivers

New Machines and Gadgets

Predict Success in Fly Control If Sanitation Used

Longer Radio Relays by Short Waves past Horizon

[Photograph]: Better Plants

International Air Tackled

Method Predicts Polio Epidemic and Cases

Blame for Baldness

Fossil Earthquake Fault Discovered in California

Short Trained Personnel

Test for Soil Needs

Expanded Draft Asked