Volume 122, Issue 2
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Features
Mapping with the Squeeze of a Bulb
How the old Methods of Topographical Surveying are Being Replaced by the Panoramic Camera
A Governmental Step-Child
Struggles of the Patent Office to Make a Nineteenth Century Wage Scale Serve the Twentieth
Saving a Capsized Dreadnought
From Wrong Side Up to Right Side Up: The Remarkable Case of the "Leonardo da Vinci"
Revival of Our Oldest Navy Yard
United States Submarine Building Activities at the Portsmouth Navy Yard
The New York State Barge Canal--II
Some Details of the Engineering Problems and the Way They Were Met
The Shunt-less Freight Terminal
A British Project for Better Hauling of "Goods" in a Large City
Why Big Guns are Short-Lived
The Geographer's Corner
Facts and Figures from the World at Large and from the Explorer's Notebook