Feature

In Science Fields

Winter Skies

Cyclotron Is Now Used in Treatment of Human Cancer

Strife Created in America by Advancing False Theories

Nicotinic Acid Hailed for Results in Curing Pellagra

Centenary of Cell Theory Celebrated This Year

Caries Cure May Be Found in Mouths Free from Decay

Front Matter

One Step in Aging Process May Be Reversed by Hormones

[Photograph]: Dunking on a Big Scale

Spain a Proving Ground for New Pellagra Cure

Research May Be Step toward Anti-Cancer Vaccination