
Volume 122, Issue 16
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Features
House Surgery in the Building Crisis
The Remodeling of Old and Obsolete Houses to Create Pleasing Modern Dwellings
California's Power Famine
Is the Dam Safe?
The Romance of Invention--XI
Elmer Sperry--The Man Who Harnessed the Motion of the Earth
At the Rock Bottom of Matter
A Popular Explanation of a Much Discussed Theory Based on New Discoveries
Uncle Sam--Motion Picture Producer
How the Department of Agriculture Is Bringing Special Film Features to All Parts of the Country
Where Concrete Things are Cast
Carbon Electrodes in the Making
High Flying in the Laboratory
Among the Mountains of Western Canada
Famous Valleys and Peaks of the Canadian Rockies Described By a Mountaineer
The Topical Lamp Post
National Life Insurance on the Endowment Plan
Universal Training—What It Is and Do We Want It?
Tiny Creatures that Make Bad Water
Plant Growths that Shed Light
Two Great Organs
Some Interesting Details of the Philadelphia and Denver Instruments