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Satisfactory Foundations for Panama Dams and Locks

Should the Steel Makers Subsidize our Shipbuilders?

Why the Big One-Caliber-Gun Battleships are Best

The Panama Canal Contract

The “Casualty List” of American Industries

Comparative Test of Alcohol, Kerosene and Gasoline as Automobile Fuels

Telephone Statistics

The Current Supplement

The Fastest and Most Powerful American Motor Bicycle

The Accident to the Stanley Steam Racer

Machine for Recording the Vibration of Ships

By Daniel M. Luehrs

Morning and Evening Stars for 1907

By Frederic R. Honey

The Somersaulting Automobile

The Battleship of the Future—I

By Forrest E. Cardullo

The Optical Intensification of Paintings

By R. W. Wood

A Clock Made of Slate

The Spider's Web as a Negative

The New Lock and Key Bottle for Holding Poison

Public Weather Towers in Vienna


  • Departments


  • Notes and Queries

  • Recently Patented Inventions

  • Index Of Inventions

  • New Books, Etc.

  • Patents

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