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Cable Fastenings of the East River Bridge

Despaquls' Photo-Engraving Process

About Sparrows

Iron and Steel in Railway Car Construction

The Degradation of Labor

The Howgate Polar Colony

Selling Patents by Auction

Improved Donkey Pump

A New Telephone


Astronomical Notes

Browne's Book Cover Protector

Micrometer Caliper

Postage Stamp Canceller

Improved Log Turner

Wood Engraving in Japan

The Brown Bat

By C. Few Seiss

Exterminating Moles


The Watch--Its Invention and History

New Agricultural Inventions

New Household Inventions

Recent American and Foreign Patents

New Mechanical and Engineering Inventions

New Miscellaneous Inventions

New Woodworking and House and Carriage Building Inventions

Communications Received


  • Departments

    Notes and Queries

  • Business and Personal

  • Index of Inventions

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August 11, 1877

Of Shamrocks and Science

Happy St. Patrick’s Day