Volume 11, Issue 29
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Features
A Good Notice on Both Sides
Machine for Sweeping the Streets
List of Patent Claims
New York Railroads
Daguerreotype Pictures for the Stereoscope
Natural Right of Man to His Invention
Pennsylvania Polytechnic College
To Inventors
Henry Cort, the Inventor of Grooved Rollers and the Puddling of Iron
Mascher's Stereoscopic Books
Steam Fire Engines
Fuel Cutter
Recent American Patents
Five Reasons Against the Extension of the Woodworth Patent.--Letter from Constituents to a Member of Congress
Propositions for Testing Engines and Boilers
Louisiana Right Side Up
Gold and its Uses--No. 3
American Association for the Advancement of Science
Recent Foreign Inventions
Orfila's Hair Dye
Steamboat Dangers
Important Items
Mechanics
Inventors, and Manufacturers