Volume 121, Issue 7
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Features
Legal Advice with a Guarantee, Life Preservers For Air Passengers and more
A Salvaging Submarine, Airplane Extremes
Describing the Latest Craft of Simon Lake Which Simplifies Underwater Work
Corrosion-Proof Steels
Recent Progress in the Development of Iron Alloys that Resist Rust
The Standardization of Standards
A Permanent Body Looking Toward Consistency and Workability in Engineering Dicta
Coasting in the Wake of a Ferry Boat
A Hudson River Modification of a Hawaiian Sport
Our Technical Achievements in the Great War--III
Transporting 2,000,000 Soldiers and 71,452,000 Tons of Supplies to France