Feature

Insects Active on Many Battlefronts Until Frost

Stone Age Men Made Tools of Rock Crystal

In Science Fields

Research Hailed as Means to Save Railroad Lines

Artificial Gamma Radiation Approximates Cosmic Rays

Infantile Paralysis Selects Special Type of Children

Enzyme in Liver Makes Vitamin A from Carotene

Physicists Study Effects of Strong Winds on Skyscrapers

Nature Ramblings: Late Violets

Outwitting Climate

First Glances at New Books

Valuable Objects Found in Cemetery of Unknown Race