Feature

[Photograph]: Ultra-Precise

Tobacco Substitute Fails

Mines Cause Lung Cancer

Seed Hulls Help Prevent Tooth Decay in Rats

U. S. Infant Mortality Decreasing Very Slowly

Implanted Pacemaker Adjusts Heartbeat

Hospitals Worry Patients

[Photograph]: Fifteen Acres of Plastic

Hospital Bed Needs Forecast Mathematically

In Science Fields

Our Rare and Extinct Animals

Tissue Compatibility Test Applicable to Humans