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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

White Gunpowder

Improvements in Engines--Superheating Steam

Our Workshops Turning Out Artillery

A New Article Made from Old Shoes

Information as to the Patentable Novelty of Inventions

More about Friction Matches

Discussion on the Patent Laws in England

National Rifle Clubs

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

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

Science for the Modern World