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Features

Machine for Making Sisal Hemp, On Filtration—A New Medium

Change of Mail Day

The War

Ames's Patent Index Door-Plate

Look Out! Look Out!!

Letters from the South

Cochran's Corrugated Ring or Cup Projectile

Armstrong Guns Denounced—Breech-Loading Cannon

Who Began the War

Experiments with Cannon and Shot

Recent American Inventions

Patent Claims - June 8, 1861

Hall's Drinking Tube

Departments

  • Letters

    Correspondence - June 8, 1861

  • Departments

    Notes and Queries - June 8, 1861

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June 08, 1861