Volume 98, Issue 5
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Features
The Lessons of the Parker Building Fire
The Fastest Warship Afloat
The Enlargement of the Assouan Dam
A Year's Progress on the Panama Canal
A Strip of Territory Added to Alaska
A $25,000 Prize for a Mathematical Solution
A Universal Bench Vise
A Motor Chair Invented by a Woman
Chess in Three Dimensions
By Our Berlin Correspondent