Feature

Front Matter

Psychology Group Issues Manifesto against War

Original Bell Phonograph Unsealed after 56 Years

Women Produce Large Share of Family Income in America

Visitors Can Turn Lever and Find Length of Lives

High Blood Pressure Cause Still Unsolved Problem

Why Do the Quints Differ? A Puzzle for Science

10-Mile Shaft in Earth Is Called a Need of Science

Signal Lamp on Forceps Gives Surgeon Go Signal

In Science Fields

Wooden Indians

Rebuild European Homes of Forty Centuries Ago