Feature

Draw-Casting New Trick in Making Copper Rods

Ancient Rocks Identified by Two Trilobite Genera

Animals of Cooler Regions Larger than Warm-Land Kin

Pueblo War Songs Link Indians with Far East

In Science Fields

New Swedish Process Freezes Salt from Ocean

Know Arthritis Type before Pulling Teeth, Dentist Warns

First Glances at New Books

[Photograph]: Lasting Impression

National Research Council Elects New Chairman

Chemistry, Research Built Quarter of U.S. Industry

[Photograph]: A Beach of Dead Fish