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Improvement in Sawmills, The Strength of Iron Pillars and more

More Gunboats Launched

The War

The Polytechnic Association of the American Institute

United States Circuit Court—In Equity

Shocking Accident from Dresses Taking Fire—Safety Clothing

Our Workshops Turning Out Artillery

Information as to the Patentable Novelty of Inventions

Improvements in Engines--Superheating Steam

A New Article Made from Old Shoes

White Gunpowder

More about Friction Matches

Discussion on the Patent Laws in England

Substances that will Crystallize and those that will Not—A New Separation

National Rifle Clubs

Continued and Steady Progress of American Inventions in Europe

Patent Claims - September 28, 1861

Recent American Inventions

The United States Treasury Notes


  • Letters

    Correspondence - September 28, 1861

  • Departments

    Notes and Queries - September 28, 1861

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September 28, 1861