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Features

A Bridge Broken

Polytechnic School in New York

Yellow Metal Ship Fastenings

Novel Rotary Steam Engine

Stalactites

American-Built Russian Steamers

Improved Oscillating Pump

Nail Machine

Improved Wagon Seat

Improved Card Press

The Infected Ship

Why we Oppose the Extension of Patents

Employment for our Poor in the West

American Cotton is King

India Rubber Extension Cases

The Decision in the Reaper Patent Case

Apparatus for Impregnating Liquids with Carbonic Acid Gas

Improved Hatchet

More Potash

New Printing Press

Paddle Wheel

New Smut Machine

Improved Breakwater

Self-Indicting Balance Barometer

American and European Railroads

Improved Cotton Picker

Mechanics

Departments

  • Letters

    Correspondents - May 8, 1858

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