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New Machinery for Depurating Sugar and other Substances

The Iron Business of New York

To Destroy Insects on Vines

Tunnel on the Baltimore and Ohio Railroad

Whale Shooting

A Successful Factory

Alabama and Tennessee Railroad

Coffee for Weak Stomachs

New York Directory

Postage Reform

Remington's Bridge

Southern Manufactures

Coal Trade of Ohio

Log and Board Measure

New Way of Catching Trout

Philosophy of Mechanics

Railroad Accidents

Steamboat Accidents and the Bursting of Boilers

Tunnelling the Alps

Paine's Electric Light

Steam Boiler Invention

Bevan's Patent Arch Girder

Great Patent Case

Improvement in Daguerreotype Cases

Improvement in Sugar Refining

New Machine for Making Shoemakers'Jiggers

New Method of Joining Metals

Opinions about Discoveries

Artificial Diamonds and the Washington Globe

Lights and Shade of Sense and Nonsense

Manufactures in the United States

Strength of the Sword Fish

A New Form of Mesmerism in Clocks

List of Patent Claims

New Agents for the Scientific American

Back Volumes Scientific American

Manufacture of the Chromate of Potash, Lead and Lime

Inventors and Mechanics

How to Enlarge Vegetables

History of Propellers and Steam Navigation

Chemical Constituents of Iron



  • From the Editor

    To Correspondents

  • Erratum

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June 29, 1850