Volume 124, Issue 9
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Features
The Big Eddy Dam
Some of the Difficulties of River Barrage in Rough Country
That Moon Rocket Proposition
Its Proponent Says a Few Words in Refutation of Some Popular Fallacies
Shall We Have a National Trade-Mark?
The Advisability of Identifying American Goods in the Markets of the World
Winged Transportation
A Survey of Commercial Air Services Both Here and Abroad
Latin Foods in Old New York
Something Familiar for the Native of Any Quarter of the New World
A Phonograph that is Always at its Best, Power Transmission by Fluid Waves and more
With the Engineers of Industry
A Department Devoted to the Physical Problems of the Plant Executive