Feature

Fingerprints May Be Used to Protect Checks from Forgery

Gold

Scientists, Not Surprised by Earthquakes, Expect Others

Earthquake Trapped by Watchful Recorders

Camera Pictures Beauty and Progress at Hoover Dam

In Science Fields

Front Matter

Cooperative Phenomena New Term in Physics

Mathematical Formula Describes Legislator’s Vote

Smoking Found to Increase Carbon Monoxide in Blood

Old Shipwreck Gives Clue to Formation of Petroleum

Great Lion of La Brea