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De Brame's Revolving Cannon

The War

Changes in the Patent Office

India-Rubber Manufactures for Army and Navy Purposes

Important Experiments

Recent American Inventions

Machinery of the Patent Office

How Percussion Caps are Made

Flax as a Substitute for Cotton—A Delusion

Six Good Reasons Why Every Manufacturer, Mechanic, Inventor and Artizan should become a Fatron of the Scientific American

Important to our Subscribers

Our Foreign Relations

Improvements in Cannon

The Folly of Appointing Civilians to Military Command

Our Army Commissariat—Bread

Patent Claims - June 22, 1861

To Our Readers

The Lady's Winged Grenade for House Defense


  • Departments

    Notes and Queries - June 22, 1861

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