Feature

He Knows the Sun

Lawbreaking America

X-Ray Reveals Portrait

Back Matter

New Treatment for Cancer Uses Extract of Liver

Chemist Makes New Synthetic Resin

Ancient Mayas Studied Earthquakes; Sought Land Free from Them for Home

American Fur Dyeing Industry Leads World

Wood and Weather Affect Wearing Qualities of Paints

Female Sex Gland Extract Studied

Bone Marrow Is Good Blood Tonic

Vitamin Feeding Makes Better Chickens