Feature

Zinc Sulfate Pontocain Solution Urged as Preventive of Polio

Anti-Blood Clotting Agent Clue to Thrombosis Treatment

Fuzzless Peach Developed after Many Years of Research

Front Matter

Engineers Invent New Word; A “Vodas” Distorts Voice

Mt. Holyoke Chemist Is First to Win Garvan Medal

Giant Variable Stars Vary Entirely by Laws of Chance

300 to 500 Respirators Are Available Throughout U. S.

Sun Gives Less Light than Supposed, Moon Gives More

Match Inhaler Invented for Treatment of Colds

Columbus and Aviation Linked in Memorial Beacon

First Glances at New Books