Volume 125, Issue 10
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Features
The Loss of "ZR-2," Uncharted Perils of the Road and more
Our "ZR-2" Airship and its Shed
Some Details of the Giant Dirigible and the Huge Hangar To Be Used by the U. S. Navy
The Motor Clipper
A Motor Sailing Ship That Can Compete with the Ocean-Going Tramp Steamer
Industrial Alcohol
Where It Is to Come From, and Some of the Things We Are to Do With It
From Swords to Plowshares
A Survey of the Post-War Activities of the Huge Krupp Works
Cultivated Rubber
How the "Plantation" Has Made It Possible for the Grower to Keep Pace with the Demand