New Project of a Railroad

Inventor of the Tubular Bridge

Bread Making and Baking Machine

Progress of Discovery During the Last Half Century

Composition of Materials Employed in the Manufacture of Percelain in China

Baths and Laundries in London

English Cheap Plated Works

Steamboat Explosions and the Law

Statistics of New York

Ear Syringe

The African Exploring Expedition

Successful Result of Arsenic in the Case of Pleuro-Pneumonia

Post Office Statistics

New Gas Burner

Extension of Patents Applied for

Patent Troubles—Friction Matches

Mineral Riches of Arkansas

Improvements in London

Improved Blowing Machine

Eclipses for 1851

Bills for Reforming the Patent Laws

Veto of the Gas Contract

Passages of the Atlantic Mail Steamships from Liverpool to New York, from Sept. 21, 1850, to Jan. 1, 1851

Compound Gases—Oxygen and Hydrogen

The Inventor of the Power Loom

Bain's Telegraph in France

Mechanical Principles—No. 2

Niagara Suspension Bridge

List of Patent Claims

Increase in Price of Scotch Pig Iron

Standing Notice to Subscribers

Patent Claims

Imported Maderia Wines

Bear Hunting in Sweden

Hydraulics

Hydrogen a Metal

Commissioner of Patents Reports

Mechanics

Inventors and Manufacturers