Feature

Trichinosis Ten Times as Common as Has Been Supposed

Health Officers Queried about Polio Protection

In Science Fields

Chickens Lose Their Brains If New Diet Factor Is Missing

Garlic Breath War Continues; Yale Insists on Mouthwash

Look for Uranus

[Photograph]: Testing His Tendency to Colds

Nature Ramblings: The Acorn Crop

Find Industrial Efficiency Depends on Social Environment

Politics Gets Recognition as a Branch of Psychology

Largest Gaseous Nebula “Found” by New Telescope

First Glances at New Books