Feature

Earth’s Many Depressions Were Blessings in Disguise

In Science Fields

“Word Swallowing” Links Indians of Two Americas

Beryllium Atoms Radioactive; New Helium Variety Predicted

Sufferer Helped by Baths of Poison Ivy Extract

Constitution of Protein: “A Classic of Science”

[Illustration]: Earthquake Map

Front Matter

Scientists, Not Surprised by Earthquakes, Expect Others

Earthquake Trapped by Watchful Recorders

Cooperative Phenomena New Term in Physics

Fingerprints May Be Used to Protect Checks from Forgery