Feature

Huge Steel Drydock Towed Half Away around World

New Discoveries of Radium Made in Canadian Northwest

Front Matter

[Photograph]: The Brass Brain

Heavy Northern Snows May Promote Duck Breeding

Watching for Earthquakes Latest Task of Electric Eye

First Glances at New Books

New Technique of Science Education to Be Introduced

Vitamin A Found Kin to Artificial Violet Perfume

Electromagnetic Test Proves Double Weight Hydrogen

Past Eleven-Year Period Shown as Hottest on Record

X-Rays Detect Lead Poisoning in Children