Scientific American Magazine

The Philadelphia Navy-Yard

Hoosic Mountain Tunnel

James Watt

Metals of the United States

The Everglades

Anderson's Revolving Steam Boiler

Foreign Correspondence

Astronomical Science

New Machine Shop at the Brooklyn Navy Yard

Rivers of Alabama

Force of Waves

Singular and Startling Phenomenon

Steam Pleasure Yacht

The Earth's Motion Made Visible

New Steamship Humboldt

Manufacture of Precious Gems

Cholera in Animals

Extracting Silver from Argentiferous Minerals

Discovery of Marl

Improvements in Knitting Machines

Gas Light on Minot's Ledge

Improved Revolver

Railings for Trap Doors

The Atmospheric Lamp!—Another New Light from Paine's Laboratory

Another Trial of Prof. Page's Electric Locomotive

Improvement for Arming Steamships

Anhydrous Steam—Stame

Cannel Coal of Virginia

Electrotyping—Our New Heading

Thayer's Bridge

Paving Streets by Torch Light

Light Locomotives

Banvard, the American Artist

Mexican Cave

Rapidity of the Nervous Current

Practical Remarks on Illuminating Gas

List of Patent Claims

Patent Claims

New Edition of the Patent Laws

Cultivation of Cinnamon

Mechanics

Adulterations in Food

Geological Explorations in North Carolina

Hydraulics

To Correspondents