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A "Queer" Patent Bill

The Official Report of the "Maine" Disaster

Naval Appropriation Bill Passed

The Welsbach Patent Sustained

The Submarine Torpedo Boat

The Bill to Increase the Patent Office Force

Relief for Cuban Famine Sufferers

A Manuscript Holder and Spacer

The Aven Armand, Lozere, France

By Horace C. Hovey

An Improved Rotary Engine

Columbia's Artificial Moon

The "New Orleans"

The Launch of the United States Battleships "Kentucky" and "Kearsarge"

A Simple Mirror Galvanometer

Successful Trials of the Holland Submarine Boat

Report of the Naval Court on the Destruction of the "Maine"

Recent Analysis of Cigarettes

To Inventors - April 9, 1898


  • Recommended

    New Books, Etc. - April 9, 1898

  • Departments

    Business and Personal - April 9, 1898

  • Recently Patented Inventions - April 9, 1898

  • Index of Inventions - April 9, 1898

  • Notes and Queries - April 9, 1898

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April 09, 1898

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