Feature

Infant Mortality in the United States: A Study of 140,000 Births Emphasizes Prenatal Care

A Third Hormone That Can Induce Mating

Volcano Forecasting: Imprecise but Improving

Are the Continents Propelled by Elastic Energy?

Desert Shrubs Called ‘the Neglected Resource’

$30 Million Allotted for Research Fellowships

Aircraft Emissions Subject of New Guides

Ten Soviet Cosmonauts in U.S. for Training

A Spectacular Visitor from Deep Space

Science and Man in the Americas

Environmental Sciences

Behavioral Sciences