Feature

Fresh-Water Fish Learn to Live in Sea Water

Watch for Eclipse

Stratosphere Balloon Ripped Because Fabric Stuck

Spores of Fungi Captured in Arctic Upper Air

Blame for Eel-Grass Disease Laid on One-Celled Animal

Serious Heart Diseases Caused by External Nerves

U. S. Largely Unmapped; Completion of Work Urged

[Photograph]: Captain of a Whale

Accidents Killed 99,000 Persons during 1934

[Photograph]: Stowaway

Strong Fortress of Incas Unearthed in Peru

Twin-Training Experiments May Be Great Historic Event