Feature

Bacteria Grown to Order; Make Butter Uniform

In Science Fields

Stellar Preview

Seashore National Park to Preserve Beauty of Dunes

British Expert Predicts Speed and Altitude Limits

Infantile Paralysis Cases Continue to Mount

Nature Ramblings: Widows’ Sons

First Glances at New Books

Front Matter

Anti-Blood Clotting Agent Clue to Thrombosis Treatment

Mt. Holyoke Chemist Is First to Win Garvan Medal

Zinc Sulfate Pontocain Solution Urged as Preventive of Polio