Feature

In Science Fields

New Beet Variety Resists Disease

Surgeon Suggests Golden Rule to Combat Nervous Troubles

Sharks May Have Saved World for Vertebrates

Raising Houseflies Now a Business

Different Breathing May Cause Scientists’ Diverging Views

Maclure on North American Geology: “A Classic of Science”

Front Matter

Super-Atomic Bullets Smash Lithium Atoms for Americans

“Oldest American House” Dated by Tree Calendar

First Glances at New Books

Monkey-like Animal Found in German Lignite Mine