Feature

Find Second Way of Making Radioactive Nitrogen

New World Record Found for Height of Daily Tide

Infantile Paralysis Vaccine Being Tried in New York

Mild Winter and Drought Menace Park Animals’ Range

Jupiter and Saturn Have Atmosphere of Deadly Gas

[Photograph]: In a Museum Now

Many More Gland Secretions Still Awaiting Discovery

Two Earthquakes Shock Mexico and Chile

Pressing Problems of Science Listed by SAB Chairman

200 Years to Cool Boulder Dam If Not Refrigerated

Don’t Forget 137th Dimension Eddington Warns Scientists

[Photograph]: A Modern American’s “Igloo”