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The Exportation of American Manufactures

White Nickel Bronze

New Jersey Mines and Minerals

New York Academy of Sciences

The Edison Lamp Tests

The National Academy of Science

The Commissionership of Patents

Tornado in Missouri

The Tunnel Under the Hudson River

Crime in Bengal

Improved Knife Handle

Simple Telephone Transmitter

By Geo. M. Hopkins

What is the Time of Jupiter's Rotation?

The Great Southern Comet

Engineering Invention - May 8, 1880

New Boiler Cleaner

New Life Preserver

Railway Cremation

Sea Beans

By A. W. Roberts

Insane Ingenuity

Mechanical Inventions - May 8, 1880

Miscellaneous Inventions - May 8, 1880

Improved Rail

Improved Windmill

Agricultural Inventions - May 8, 1880


  • Departments

    New Inventions - May 8, 1880

  • Notes and Queries - May 8, 1880

  • Business and Personal - May 8, 1880

  • Index of Inventions - May 8, 1880

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