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A Road Made of Charcoal

Improved Method to Produce Continuous Rotary Motion for Mills From a Steam Engine

Gentle Words--Loving Smiles

Hook'e Universal Joint

New Haven and New York Railroad

Oh, Be Kindly

Plank Roads

Squirrels Reared by a Cat

The Benefit of a Strong Beaver

Heavy Damages for Breach of Privilege in Partnership

Hydraulic Engine

Medical Convention at Boston

Propeller Sarah Sands

The Canal Locks at Lockport

Weather, Fruits, &C

Gas Works Explosion

Great Seizure of Counterfelting Apparatus

A Curiosity

New Electrical Instrument

Pineapples in Florida

A New Poison

Passage of Hydrogen Gas Through Solid Bodies

The Chemical Character of Steel

To Render Paper Hangings Washable When up

Dyeing Home Made Clothes

New Process of Manufacturing Carbonate or White Lead

Morin's Friction Brake to Test the Power of Water Wheels

Improvement in Band Boxes

Another Sewing Machine

Combined Chimney and Screw

Improved Steam Regulator

Improved Water Gate for Canal Locks

Life Preserving Mattress

New Composition for Sign Letters

Steam and Water Power

A Characteristic of the Age

Our London Patrons

Patents Issued

Pressure of the Ocean


Back Volumes of the Scientific American

Wages in Germany

Great Shafts

Hoe's Printing Presses

Great Pall Factory

Huge Casting of a Propeller Wheel

Iron Stores

Our Prize Essay

National Importance of Health

List of Patents

A Criticism

The Upas Tree


Razor Paper

Useful Problems

Agricultural Document

The Best Mechanical Paper in the World!


  • From the Editor

    To Our Contemporaries

  • To Correspondents

  • Letters

    Correspondence of the Sci. American

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May 12, 1849

20% Sitewide for President's Day