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Features

The Erie Railroad

Keep your Back Warm

Improvement in Wind-Mills

Cold Water for Burns

New Motive Power

From California

Cincinnatti for Pork Hams

Foreign Correspondence

Bahama Sponges

Magnetism of the Atmosphere

The Mystery of the Electric Circuit

Passages of the Atlantic Mail Steamships from Liverpool to New York, from Jan. 1 to April 3, 1851

Nasmyth's Improvements in Forging Heavy Masses of Iron

The Cunard and Collins Steamers

Improved Printing Press

Norcross's Planing Machine

Double Rotary Grinding Metallic Mill

New Smut Machine

Rice and Its Cultivation

An American Machine for Turkey

Patent for Paine's Light

Electro-magnetic Annunciator for Hotels

The World's Fair in America

The Crystal Palace

Give us the Name of the Inventor English Patent Laws

Practical Remarks on Illuminating Gas

List of Patent Claims

New Edition of the Patent Laws

Chain of Being

The English Railway

Mechanics

Inventors and Manufacturers

Light at Last

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    To Correspondents

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April 12, 1851

Complex Causes. Alternative Solutions.