Feature

New Sashless Storm Window Is Easily Installed

Quinine for War

Wired-Radio Programs Used in Army Camps

Nature Ramblings: Reading Snow Crystals

Smithsonian Institution Converts to War Projects

New Machines and Gadgets

Breathing Rhythm Change Sign of Impending Death

First Glances at New Books

Substitutes Are Better

Nature Ramblings: Figments of Fancy

Health Pick-Me-Ups for Tired Business Man

Smoke above the Clouds Landmarks Airmen’s Flights