Volume 122, Issue 11
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Features
Navigating Ships in Trains
An Electrically-Driven Power Boat That Supplies Current to the Motor-Equipped Units of Its Convoy
The Cleaning of Railroad Ballast, Street Accidents in Miniature
The X-Ray in the Shop
Succeeding in Chemistry
A Relatively New Field Abounding in Opportunities
Seeking the Seven-Mile Ceiling
Details of Major Schroeder's New Altitude Record of 36,020 Feet
Highways Through the Wilderness
Venezuela's New Link Joining Her Ports With Her Internal Trade Centers
Cutting Out a Railroad Hazard
Welding a Lighthouse's Broken Legs
The Photostat as an Aid to Research
Some Example of the Uses to Which It Has Been Put in One Library
What is a Silo?
An Invention of the Nineteenth Century and the Place Found for it in Farm Economics by the Twentieth
Ecuador Contributes a Wood that is Lighter than Cork
Some Features of the American Motor Boat Show
By "Nauticus"