Feature

New Books

Ravens Know Trick of Military Aviators

“Polio” Germ May Enter Body through Stomach

Navajos to Build Their Own Capital

Love of Pets Chief Obstacle in Conquest of Parrot Fever

First Glances at New Books

Explorations at Ur Finished; Cemetery Found in Pit Bottom

Many in Schools for Blind Could Have Sight Restored

Earth’s Rarest Elements Held Once Abundant

Sunburn No Assurance of Rickets Prevention

Front Matter

Monkey Drug Addicts Act like Human Dope Victims