Feature

Books of the Week

60 Teeth in Jaws but Only Two to Chew With

Nobelist Fights Yellow Jack

Beaver Less Eager, Build Cornstalk Dams

Long Lives for Women

Turbulence Cause Probed

Speed Broken Bone Healing

Antibiotics Save Abscessed Teeth Formerly Extracted

U. S. Uranium Reports Opened to Prospectors

Movies of Living Heart Show How Valves Function

No Wisdom Teeth in Future

Front Matter