Feature

Army Beats Bread Problem

Tumors Cause Tumors

In Science Fields

Soviet-U. S. Education

Books of the Week

New Machines and Gadgets

Nature Ramblings: Greeting the Robin

Front Matter

U. S. Contacts Venus

Spot-Pinpointing Device Aids Missile Guidance

U. S. Will Continue Research in Antarctica

National Atmospheric Institute Proposed to NSF