Skip to main content

Features

Mobile and Ohio Railroad

Stammering

Sugar Crop of Texas

English Horses

Locomotive and Car Hoister

Low Headed Fruit Trees

Invention of Pegged Shoes

Ocean Steam Navigation to Europe

Singular Petrification

Sir John Franklin

Silver Mines of Mexico

The Telegraph Bill

Agricultural Address

The Virginia Gold Mines

Correspondence of the Scientific American

Leather

Lewiston and Queenston Suspension Bridge

Extraordinary Discovery

Mineral Riches of Southern Illinois

New Orleans Mint Closed

Important to Inventors

A Work of Art

The Stephensons

The Value of the Mechanic Arts

Death by Spontaneous Combustion

Killed by the Crater of Vesuvius

Improved Machinery for Making Cotton Batting and for Sizing and Drying it

Sheet Iron Pipes

Wilcox's Amphibion Propeller

Horse Shoes Fastened without Nails

New Cotton Ginning Machine Wanted

Improved Grain Dryer

New Kind of Coal

Improvements in Door Knobs

House Cleaning

Percussion Cap Machine

The Tyrian Purple

The Woodworth Patent

Changes in Society—Progress of Travelling

Great Patent Case

English and American Patent Laws

List of Patent Claims

Notice

Back Volumes Scientific American

A Disaster Averted by Discipline

History of Propellers and Steam Navigation

A Cave Found

Curious Fact

To Inventors and Mechanics

An American Mineralogist in Turkey

Tanning—Practical Remarks

Departments

  • From the Editor

    To Correspondents

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
April 20, 1850

See the World from a Different Perspective

Subscribe to Scientific American MIND