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Commercial Value of Wireless Telegraphy

A Peril to the Navy

What Poor Roads Cost our Farmers

The New Canal Commission

Municipal Bathing Establishments

California Olive Industry

Trade with Cuba and our New Possessions

The Death of Frank Thomson

A Simple Fastener for Gates

An Improved Acetylene Generator

An Air-Cushion Fluid-Pressure Regulator

A Remarkable Bridge Disaster

A Large Static Machine for X-Ray Work

By Francis H. Williams

The Bridges of Niagara Gorge

The Cup Challenger Shamrock

The World's Coal Production


  • Letters

    Correspondence - June 17, 1899

  • Departments

    Business and Personal - June 17, 1899

  • Recently Patented Inventions -- June 17, 1899

  • Index of Inventions - June 17, 1899

  • Notes and Queries - June 17, 1899

  • Patents - June 17, 1899

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June 17, 1899

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