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Improvement on the Shanks of Door Knobs

Rules for Railway Travellers

Snead's Improved Grain Dryer

Strike on a British Railway

Bad Books

Directions for Preparing Talbotype Paper

Mineral Cave in Wisconsin

Life of a Locomotive

Patent Information—Important to Persons Using Patented Machines

Interior of East Florida

Salt at Syracuse

Medical Discovery

Spiritual Knockings

Works on Science and Art

Write Plain

Correspondence of the Scientific American

Georgia Turpentine

Death of a Sculptor

On Tides

Shingling and Manufacturing Iron

To Convert Iron into Steel by Cementation

Welding Iron

Antiquities of Ancient Chaldea

Coal Saddle Theory—New Discovery

Common Hardening

English Cast Steel

Improvement on Saddles

Singular Clock

Marine Night Signals

Transatlantic Telegraph

Abstract of some British Patents Recently Granted

Balloons for the Arctic Expedition

Cast Iron Sills

Cure for Smoky Chimneys

Fire-Proof Paper

Consumption of Smoke

Navigating the Atmosphere

New Gunpowder—Caution

Parker's Water Wheel

Useful Sleigh

List of Patent Claims

More about the Exibition of the Industry of all Nations

Back Volumes Scientific American



History of Propellers and Steam Navigation

Antique Gold Mask

To Inventors and Mechanics

Strange Event

Late Eruption of Mount Vesuvius


  • From the Editor

    To Correspondents

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May 04, 1850

20% Sitewide for President's Day