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Features

Improved Family Knitting Machine

The Chemical History of a Candle

By Faraday

Romance of the Steam Engine

American Engineers' Association

Our Navy

Column of Varieties

Cotton and Its Supply

Six Good Reasons Why Every Manufacturer, Mechanic, Inventor and Artizan Should Become a Patron of the Scientific American

Measuring Light

History of the Art of Knitting

The Way Banks Evade the Usury Laws

The Polytechnic Association of the American Institute

Patent Claims - March 30, 1861

Issued from the United States Patent Office

Change in the Patent Laws - March 30, 1861

New Arrangements—Patents Granted for Seventeen Years

Rates of Advertising

Semi-Steel

Prospectus of the Scientific American

The Best Mechanical Paper in the World Seventeenth Year

Departments

  • Letters

    Our Correspondence - March 30, 1861

  • Departments

    Notes and Queries - March 30, 1861

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March 30, 1861

Think Outside the Gift Box