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Lake Nicaragua

Improvement in Water Wheels—Fig 1

St. Louis Pacific Railroad

Mobile and Ohio Railroad

Cure for Stammering

Cotton Factory in Albany

Townsley's Water-Proof Blacking

Correspondence of the Scientific American

A Paper Devourer

Keep This In Mind



Steam Boilers

Works on Science and Art

Mississippi Wine

Woodworth Patent—Important Decision

Medical Use of Salt

Ancient Britons

Amount of Conversation Calculated

The Climate of Georgia

To Prevent Explosions

Music in Man

Franklinite Iron and Zinc

The Electric Light, &C


New Lamp for Locomotives

A New Description of Steam Vessels

Cast and Wrought Iron Rails

Improved Machine for Tinsmiths, for Turning—Fig 1

To Clean Straw Hats

Our Half Volume

Trouble about Patent Laws and Patents

Reform of the Patent Laws

List of Patent Claims

Grafting Grape Vines

Tanning—Practical Remarks

To Inventors and Mechanics


History of Propellers and Steam Navigation

Cure for Colds


  • From the Editor

    To Correspondents

  • Recommended


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March 16, 1850

Confronting Common Wisdom