Feature

First Glances at New Books

Michigan Astronomer Sketches All Sides of Planet Mars

New Cause of Backache Discovered in Ligaments

Hay Fever Time

Frozen Sleep May Replace Ether and Other Anesthetics

Great Stellar Catastrophe Found in Photographic Plates

In Science Fields

U. S. Army Air Corps Looks Back at 30 Years

Lindbergh-Carrel Heart Gives New Lead for Graves’ Disease

Report Rabbit Fever Cure by Sulfanilamide

America’s Radio Big Bertha Gets Demountable Filaments

Weakness of Stainless Steel, Seawater Corrosion, Overcome