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Ohio and Pennsylvania Railroad

Improved Domestic Mangle

Another Planet

The Toronto and Lake Huron Railroad

Cleveland and Pittsburg Railroad

For Vegetarians

A Rascal of a Savan

Pacific Railroad

Bite of an Aligator

Remarks on Diet

Iron for Car Wheels

The New Cabinet

The Atlantic Steamship

Quadrature of the Circle

Great Inland Voyage

Unpaid Letters

Terrific Storm


Sir Robert Peel

Leonard's Mechanical Principal

Iron Business of Northern New York

Cabbage Prevents Drunkenness

Sentence of Prof. Webster

Scientific Voyage

Letter from Mr. Paine

Review of the Rise Progress, and Present Importance of Cotton Manufactures of the U. S. together with Statistics showing the Comparative and Relative remuneration of English and American Operatives

Hard Black-Lead Pencils for Artists

Coating Iron Pipes with Glass

New Tobacco Sifter

New Soft Metalic Packing for Stuffing Boxes

New Reaping Machine

Life Boats

Imitation of Gold

New Nautical Instrument

Imitation of Platina

Duplex Safety Valve

New Mode of Preserving Pork

A New Rotary Steam Engine

Daguerreotype of a Star

The Wheeling Bridge

Light—Lamps and Candles

Important Curious and Scientific Information about Water Steam Ice and Explosions

A National Steam Marine

Powers of the Patent Office

Treatment of the Disease of President Taylor

List of Patent Claims

Ballooning in Portugal

Woodworth Planing Machine

Patent Cases

To Purify Sea Water

The Indiana Gold Region

An Improved Straw Cutter

Back Volumes Scientific American

American and English Steamships

About Pumps

Lightning and Lightning Conductors

Freezing Mixtures


A Chinese Art

Iron Mountain

Improvements in the Manufacture of Sugar

History of Propellers and Steam Navigation

To Inventors and Mechanics

A Corps of Sappers and Miners


  • From the Editor

    To Correspondents

  • Letters

    Important Notice to Us!

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July 27, 1850

Confronting Common Wisdom