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Spain Sells Cruisers

Comparative Operating Cost of Horse and Electric Delivery Wagons

The Wage of Original Research

Floating of the Paris

Brooms as Germ Breeders

Time of Transatlantic Passage Again Reduced

Animal Tool-Users, Engineers, and Mechanics

By James Weir

The Eastman

A Simple Mold for Composition Rollers

A Simple Tool for Cutting Pipes

Moving a 500-Ton Train-Shed Arch

Niagara Falls Power Plant

Alessandro Volta

A Catalina Walking Fish

By C. F. Holder

To Inventors July 22, 1899


  • Letters

    Correspondence - July 22,1899

  • Recommended

    New Books, Etc. - July 22, 1899

  • Departments

    Recently Patented Inventions - July 22, 1899

  • Business and Personal - July 22, 1899

  • Notes and Queries - July 22, 1899

  • Index of Inventions - July 22, 1899

  • Patents -July 22, 1899

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