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Exportations of Wheat Flour

That Air Resistance Problem

Annual Report of the Commissioner of Patents 1899

Report of the Commissioner of Patents for the Fiscal Year Ending June 30, 1899

New Features in the Scientific American

A Huge Overland Traction Engine

A Novel Device for Raising and Lowering Smokestacks

An Improved Stove-Pipe Coupling

The Johns Hydraulic Engine--A Combined Water and Air Motor

The Paris Exposition Medal

Navies of the World

A Transcontinental Automobile Vehicle

An Italian Prince Bound for the North Pole


  • Letters

    Correspondence - July 29, 1899

  • Recommended

    New Books, Etc. - July 29, 1899

  • Departments

    The Heavens in August 1899

  • Recently Patented Inventions - July 29, 1899

  • Notes and Queries - July 29, 1899

  • To Inventors - July 29, 1899

  • Index of Inventions - July 29, 1899

  • Business and Personal - July 29, 1899

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