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A Year's Progress on the Panama Canal

The Lessons of the Parker Building Fire

The Fastest Warship Afloat

The Enlargement of the Assouan Dam

Pennsylvania Railroad Delays Improvements

A Strip of Territory Added to Alaska

A $25,000 Prize for a Mathematical Solution

Chess in Three Dimensions

By Our Berlin Correspondent

A Universal Bench Vise

A Motor Chair Invented by a Woman

Erection of the Manhattan Bridge Across the East River

An Open-Air Veneer Machine

How Our Measures of Length are Tested

By Herbert T. Wade

How We Know That the Earth Rotates

A Famous Taxidermist and His Methods

By Harold J. Shepstone


  • Index of Inventions

  • Departments

    The Heavens in February

  • Correspondence

  • Recently Patented Inventions

  • Patents

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February 01, 1908