Feature

Overpopulation Threatens World

Books of the Week

New Machines and Gadgets

Nature Ramblings: Signs of Spring

Front Matter

Children Hit by New Virus

Lithium in Atmosphere Charged to H-Bomb Test

Resuscitation Device Will Fit in Beach Bag

Pennsylvania Railroad May Use New Electric Car

Science Foundation Holds Summer Institutes

Odd-Shaped Larval Eel Discovered in Pacific

Leaders Approve Council