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Features

Progress of the Pennsylvania Railroad

Lake Shore Railroad

Terre Haute and Indianapolis Railroad

Paine's Light—the Patent

Pacific Railway

Deficiency of Weight in Georgia Cotton

Novel Application of Mechanics

Immense Engineering Works

Singular Old Coin

Spontaneous Combustion—Fortunate Escape

Daguerreotyping the Moon

Tea Seed

Suspension Bridges

Foreign Correspondence

The Roc's Eggs

Page's Electro-Magnetic Locomotive

Influence of Carbonate and Phosphate of Lime upon Grains

Extraordinary Case—Trial of Manslaughter in Treating for Burning

Steam Versus Stame

Ventilation

Substitute for the Crank

Improved Stave Machine

The London Patent Cab

Improved Harvesting Machines

Whitewashing

The Lever—Its Principles

To Render Canvas Water-Proof

To Prepare Canvas for Oil Painting

Ossian E. Dodge

Improvement in Hanging Saws in Saw Mills

Hewet's Patent Wrench

Improvement in Carriage Wheel Hubs

New York Gas Lights

Young Children in Factories

Patent Cases

Knowledge is Democratic

Shortest Passage Ever Made across the Atlantic

Painting

Quarrels of our Countrymen in London

Atlantic Mail Station on the West of Ireland

American Shawls

Practical Remarks on Illuminating Gas

List of Patent Claims

New Edition of the Patent Laws

Patent Claims

Notice to Subscribers of Duggan's Work on Bridges

Steamship Atlantic Tribute to American Nautical Skill

Durability of Wood

Hydraulics

Scientific Memoranda

Departments

  • From the Editor

    Notice to Correspondents

  • To Correspondents

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April 26, 1851

Confronting Common Wisdom