Feature

Mars Favorable to Life, American Astronomer States

American Negroes Came from Small Part of Vast Africa

New York to Have Third Planetarium

Punishment Isolates Children from Parent Who Disciplines

American Physique Superior Because Better Food Eaten

Hope for New Treatment of Addison’s Disease

Nature Ramblings: Breathing without Lungs

First Glances at New Books

Chromium and Uranium: “A Classic of Science”

Seven Mummies from Texas Cave Brought to Smithsonian

Successes in Atom Smashing Evaluated by Dr. Millikan

Hardening of Brain Arteries Found Factor in Epilepsy