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Scientific American Magazine Vol 4 Issue 25

Scientific American Magazine

Volume 4, Issue 25

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Features

De Brame's Revolving Cannon

The War

Changes in the Patent Office

India-Rubber Manufactures for Army and Navy Purposes

Important Experiments

Machinery of the Patent Office

Recent American Inventions

How Percussion Caps are Made

Our Foreign Relations

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

Flax as a Substitute for Cotton—A Delusion

Important to our Subscribers

Our Army Commissariat—Bread

Improvements in Cannon

The Folly of Appointing Civilians to Military Command

Patent Claims - June 22, 1861

To Our Readers

The Lady's Winged Grenade for House Defense

Departments

Notes and Queries - June 22, 1861