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Improved Forge Hammer, Naval Steam Engines

The War

Sigourney's Projectile

Inventors the Prosperous Class

Experiments with McCarty's Centrifugal Gun

The Beginning

Steel Clad Steam Chariots of War

James' Rifled Cannon—In What It Consists

Electrical Spirit Rappers—Interesting Development

Recent American Inventions

New Odorless Burning Fluid

United States Navy Yard

Patent Claims - July 6, 1861

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  • Letters

    Correspondence - July 6, 1861

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    Notes and Queries - July 6, 1861

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July 06, 1861

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