The Publisher's Dilemma, Germany and the French Ore Deposits, and more

Woods for Making Airplanes

The Requirements of the Various Parts, and the Species with Which They Are Met

Strategic Moves of the War, September 18th, 1918

By Our Military Expert
The St. Mihiel advance and the threat against the Briey iron field
and more

How Holland will Dispose of the Zuyder Zee

A Vast Engineering Project That Will Take Thirty-three Years For Its Completion

The Construction Division of the United States Army

The Vast Machine That Attends to Emergency Building for the War Department

The Inertia of the Eye, Recording the Movement of a Climbing Plant

The Current Supplement- September 28, 1918

Potash from the Lavas of Vesuvius, French Use of X-Rays on Metals, and more