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The Tactical Value of Torpedo Craft

Accuracy and Uniformity in Electrical Standards




Successful Test of New York's High-Pressure Fire Service

By Herbert T. Wade

The Menace of the Forest Fire

By Day Allen Winley

The Launch of Our First "Dreadnought"

A Multiple Cycle for the Blind

By the English correspondent of the Scientific American

Action Aloft; or Fighting Tops, Past and Passing

The Aeronautic Society's First Exhibition

An Improved Winch

Plow for Turning the Surface Soil Under the Subsoil

Collapsible Step-Ladder

Combined Poncho and Tent

Patent Department

Brake for Bob Sleds

Waterproof Fuse Cap

Novel Type of Plow

Oddities in Invention


  • Departments

    Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • New Books, Etc.

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