Potash from Sand-Hill Lakes

If the United States Should Go To War, A Fatal Defect In Our Battle-Cruiser Designs and more

Our Eagle Learns to Fly

What Is Being Done at the Mineola Army Aviation School in the Way of Laying a Substantial Foundation for America's Air Fleet
[The article is about the US Army Air Force training school at Mineola, in Nassau County on Long Island]...

Where Science Comes to the Aid of Industries

What the Mellon Institute of Industrial Research is Doing for American Manufacturers

Modern Ordnance in Relation to Preparedness

Difficulties of Its Manufacture and Intelligent Employment by Troops

Scientific Search for An Ideal Cement

A Dental Problem and How It Was Solved In a Research Laboratory

One Phase of Our Commercial Preparedness

What Will We Do to Maintain Our Latin-American Trade Against Inroads from the West?
[The article mentions the possibility of post-war competition from the Japanese]

Germany the Land of Makeshifts

Substitutes and Rigid Economy the Order of the Day In All Industries

Science In the Lumber Industry

Tremendous Saving of Waste Products Now Being Effected Upon a Commercial Scale

Economic Changes Wrought by the War

After two and a half years of war 30,000,000 men have been withdrawn from their usual occupations.

Our Tropical Storms

French Supplies of Reconstruction Materials, Tristan da Cunha

Looking ahead to reconstruction when the war ends.

What Was To Be Seen at the First Pan-American Aeronautics Exposition, Jacketed Shrapnel, and more