Feature

In Science Fields

Seismographs Set for Spot Records of Coming Quakes

Black Magic of Witchcraft Reappears in England

The Corliss Engine: “A Classic Invention”

Changing Constellations and Meteors Featured in Skies

Real “Artificial Silk” Is Promising Possibility

Scientists Begin Occupying Stations for Polar Year Work

Gland Extract Increases Body Growth but Not Brain

Stomach Ulcers Produced by Protein Starvation

First Glances at New Books

Extra Hours of Moon Affect Reproduction of Animals

New Features Built into Next Navy Airship, “Macon”