Feature

U. S. Army Has Battery That Can Be Worn as Vest

CAA Checks Airway Aids at 40,000 Feet

New Nitrogen-Fixing Bacterium Discovered

Naked-Eye Comet Visible

[Photograph]: Helitron

In Science Fields

Climate Does Not Keep Flamingo from Hatching

Books of the Week

Government Studies Money for Research

Study Morphine Effects

Rediscover Faint Comet on Return Trip

Cost of Workers’ Illness Takes 13% of His Income