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Features

Curious Boats at the Centennial Exposition

Iron and Steel Working Improvements

Some Thoughts on Labor

Dr. Taylor Vs. Professor Huxley

New Chemical Test for Alcohol

Petroleum Changed Into Electricity and Light

The Meeting of the National Academy of Sciences

Spiritualists' Facts and Real Facts

Improved Stopcock and Street Washer Box

A New Water Engine

Improved Wood Carpeting and Inlaid Floors

New Screw-Cutting Lathe

Cutting Speeds for Lathe Work

Combination Chair and Secretary

R. Hoe & Co.'s Improved Inserted Saw Teeth

The Hemiptera or Bugs

The Burbot

Minerals at the Centennial

Centennial Notes

New Household Inventions - November 4, 1876

New Miscellaneous Inventions - November 4, 1876

Recent American and Foreign Patents - November 4, 1876

New Woodworking and House and Carriage Building Inventions - November 4, 1876

New Agricultural Inventions - November 4, 1876

Communications Received - November 4, 1876

The Validity of Patents - November 4, 1876

Departments

  • Letters

    Correspondence - November 4, 1876

  • Departments

    Business and Personal - November 4, 1876

  • Notes and Queries - November 4, 1876

  • Index of Inventions - November 4, 1876

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Know Before You Vote

Know Before You Vote