Feature

Transportation

Several Hundred New Products Are Now Ready for Market

Correction

Nature Ramblings: Watch Parent Trees

New Comet Rides High in the Northwest Evening Sky

Atom Smasher Helps to Study Mystery of Body

First Total Synthesis of Sex Hormone Equilenin

First Glances at New Books

Front Matter

Vitamin C May Be Cure and Preventive of Lead Poisoning

Sulfapyridine Shortens Pneumonia in Children

[Photograph]: Dawn of the North