Feature

How Mental Ability Varies with Age and Race

70200

Earth Built of Wedges New Geological Theory

Greater Tornado Damage Seen as Population Increases

152838

Hastens Growth of Cuttings by Using Oxidation Agents

New World Made for Plants at Boyce Thompson Institute

Hybridization of Man and Ape to Be Attempted in Africa

Diseases Blamed for Hair-Trigger Tempers

Census Shows Many Types of Insanity Curable

British Cancer Discovery Offers No Present Cure

Farmers Oppose Tuberculin Test