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Features

Superiority of American Wool

To Cure Warts

To Make Crystallized Soda Alum

Signals

Lead Mining in Missouri

The New Bible House

Railroads in the United States

New Rolling Mill

The Steam Fire Engine

Miscellaneous Items

Trade and Commerce of St. Louis

The Crystal Palace

Potato Rot

Massachusetts Coal

Turbine Water Wheel—Parker's Claims

Meteorology

Extravagant Profits of Lead Mining

Curious Geological Formations

An Erect Position

Price of Diamonds

Improvements in Dyeing

Electric Globes of Fire in a Saw Mill

Improved Steam Gun

Improved Straw Cutter

Modellers Clay

Percussion Cap Primer

Improvement in Joining Stones

Improved Let-off Motion

Cards for Hooks and Eyes

Mill Stone Pick

Pneumatic Telegraph

Fuel and Mechanical Power

Aerial Navigation by Steam without Balloons

Events of the Week

Withdrawals from the Patent Office

Repairs to the Ericsson—Let the Truth be Told

The Woodworth Patent Suit in North Carolina Terminated

French Patents

Principles of Patents—Important Decision

New Commissioner of Patents

Mechanics

An Extensive Sugar Refinery

White Sheep Skins for Door Mats

Great Fishing

Jewelry

Manufacture of Matches

Departments

  • From the Editor

    To Correspondents

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Science or SciFi?

Science or SciFi?

Vanishing Particles. Spooky Action.