Feature

In Science Fields

First Glances at New Books

New Speed Record Established by Distant Part of Universe

Nine Pairs of Stucco Feet Discovered in Mayan Ruins

Anemia Treated by Injection of Liver Extract into Vein

Front Matter

Rocks Tell How They Were Formed: “A Classic of Science”

Change in Air Gases Would Bring on Disaster

Fragments of Falling Stars Caught Drifting to Earth

First Cosmic-Ray Telescope Built at Research Laboratory

Better British Planes May Result from Steam Cooling

Huge Magnet to Be Used in Attack on Heart of Matter