Feature

Distant Nebula Discovered; Looks like Faint Star

Japanese Fishing Net Ashore at Wake Island

X-Ray Tests of Fibers Show Key to Strength

New Model Curtiss Hawk Supplied to U. S. Army

Vitamin Linked with Sex; Found Associated with Ova

Two-Way Radio Sets Used to Tell Who Is “Killed”

In Science Fields

Disease without Remedy

Army Has Special Course in Tropical Medicine

Big Jump in Sleeping Sickness Reported from the Dakotas

Front Matter

Sun Is Bound to Explode, Turning Earth to Cloud of Gas