Volume 4, Issue 19
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Features
Fire Clay Manufactures
Practical Warfare
Hotchkiss' Rifled Cannon Ball
Our History of the War
The Reason for Secession
Attitude of Maryland
Purifying Water for Soldiers
Learning to Shoot
Careful Loading of Rifles
Recent American Inventions - May 11, 1861
Romance of the Steam Engine
Patent Claims - May 11, 1861
Issued from the United States Patent Office