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Features

Use of Various Motors in Aerostatics

The New Era for the Steam Engine

Temporary Relief at the Brooklyn Bridge

Incomes of Successful Inventors

By Ansley Irvine

Science Notes - March 22, 1902

Lead Mining in Wisconsin

The Computing Triangle

By B. M. Des Jardins

The Motsinger Ignition Dynamo

Solid Carbonic Acid from "Sparklets"

By R. W. Wood

Some Disastrous Acetylene Gas Explosions

The Engines of the New York Edison Power Station

The Cranberry Industry

Three-Phase 10,000-Volt Railway at Gross-lichterfelde

By Frank C. Perkins

A New Spring Block

Patent Department

Hydrocarbon Burner

Double-Moldboard Hilling-Up Plow

Simple and Interesting Inventions

Departments

  • Departments

    Correspondence - March 22, 1902

  • Legal Notes - March 22, 1902

  • Business and Personal Wants - March 22, 1902

  • Recently Patented Inventions - March 22, 1902

  • Index of Inventions - March 22, 1902

  • New Books, Etc. - March 22, 1902

  • Notes and Queries - March 22, 1902

  • Patents - March 22, 1902

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March 22, 1902