Feature

Life Checks Downhill Course of Energy

Gas Defends Metals against Corrosion Losses

Small Saber-Tooth Cat Found in Idaho Fossil Bed

British Engineer Criticizes Development of American Car

Tunneling Reveals Layers of Mexican Pyramid

Urn Pattern Existed Long before Urns Were Made

More Luxury and Comfort Visioned in Future Automobile

Ultra-Short Radio Waves Sent around Curvature of Earth

Dead Seas Hoard Minute Amounts of “Heavy” Water

Look Overhead

First Glances at New Books

Front Matter