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The Stevens Battery

The War

Directions to Army Surgeons on the Field of Battle

Quimby's Letter Box for Post Offices

Information as to the Patentable Novelty of Inventions

Steam Cultivation--Deep Plowing

Developments of Chemistry

The Oil Wells of Pennsylvania—Curious Spouting Phenomena

An Exciting Question--Boiler Explosions and their Causes

The Mechanic Arts in Central Africa

Patent Claims - August 31, 1861

Recent American Inventions

Instructions about European Patents


  • Letters

    Correspondence - August 31, 1861

  • Departments

    Notes and Queries - August 31, 1861

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