Feature

Surgeons See Heart Valve

1975 Population Put at 190,000,000 for U. S.

Vein Injections Relieve Blood Pressure Headache

In Science Fields

Plastics for the Garden

Subscription TV System

Books of the Week

Synthesize Polypeptides

X-Rays and War Gas for Hodgkin’s Disease

Other Mountains Harder to Climb than Everest

Having Baby Is Problem

Tell Blood Differences