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The Hudson River Railroad

Yellow Ink

Red Ink

Green Ink

Japan Writing Ink

Russian Ink Powder

Good Writing Ink

Improved Seed Planter

Steam between Virginia and Europe

Patent Case


Gas in Wheeling

Color of the Ocean


A Telegraph to California

Works on Science and Art


The City of Glasgow

Ship's Blacksmith

Off with the Beards

New England Industry

Mammoth Steamer on the Missisippi

Cotton Factories

Correspondence of the Scientific American

Plank Roads in Alabama

Effects of Proportion

Lumber Trade in Maine

Fusible Plug for Boilers

Sugar and its Uses

Percussion and Re-Action Water Wheels


Lifting Heavy Persons

Shingle Machine


Improved Bench Hook for Carpenters and Workers in Wood

Paine's Hydro-Electric Light

New Process of Smelting Iron Ore

Morse's Air Distributor

Experiments with Water Wheels

Curious Discovery

Tunnelling through the Alps

American Inventions in England

Preparation for Coating Ships

Improvement the Manufacture of Sugar

Charcoal Melted

Foreign Forgeries about American In-Inventions

Scientific Knowledge

Planing Machines—Important Decision of the Supreme Court of the U. S.

The London Patent Journal and Inventors Magazine

Texas Crops

Reform of the Patent Laws

List of Patent Claims


Back Volumes Scientific American

To Inventors and Mechanics

History of Propellers and Steam Navigation

The Employment of Chloroform

Spheroidal State of Water

Gravity Vs. Folly

Expeditious Mode of Reducing Iron Ore into Malleable Iron

To Make Edge-Tools from Cast Steel and Iron



  • From the Editor

    To Correspondents

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May 11, 1850

Of Shamrocks and Science

Happy St. Patrick’s Day