Feature

Most Perfect Neandertal Skull Is Being Studied in Rome

It Is Not Kind to Child to Keep Reality from Him

Pick-up Airmail Service to Include Air Express

Mayo Clinic and Foundation Organized to Carry on Work

Front Matter

Ultra-Fast Wing Beats of Insects Discovered

Report Rabbit Fever Cure by Sulfanilamide

Great Stellar Catastrophe Found in Photographic Plates

Frozen Sleep May Replace Ether and Other Anesthetics

New Cause of Backache Discovered in Ligaments

Lindbergh-Carrel Heart Gives New Lead for Graves’ Disease

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