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Features

Angulated Principle of Shipbuilding, Improved Projectile

The War

Recent American Inventions

Howe's Army Scale

Commissioners to the World's Fair

Information as to the Patentable Novelty of Inventions

English Ignorance and Insolence

High Pressure Engines in England

Single and Double Cylinder Engines

New Dummy Locomotive

Science in the Schools

Patent Claims - October 12, 1861

Montgomery's Canteen

Departments

  • Letters

    Correspondence - October 12, 1861

  • Departments

    Notes and Queries - October 12, 1861

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