Scientific American Magazine Vol 21 Issue 18

Scientific American Magazine

Volume 21, Issue 18

You are currently logged out. Please sign in to download the issue PDF.

Features

The French Atlantic Telegraph

From Chambers' Journal

Improvement in Railroad Switches

The Manufacture of Sulphuric Acid

J. Lawrence Smith

The Niagara Elevator at Buffalo

Some Experiments with the Great Induction Coil at the Royal Polytechnic

John Henry Pepper

“Fast” Methods of Telegraphy

The Use of Counter-Pressure Steam in The Locomotive Engine as a Brake

How Mahogany is Obtained

Organic and Inorganic Substances

The Exhibition of the American Institute

The Velocipedes Out Again

The Watering of the Streets of New York with Sea Water

New Facts About the Formation of Deposits in Steam Boilers

The Preservation of Iron

Progress of American Woolen Manufactures

Great Value of Patents

Obituary—Charles B. Hutchinson

Recent American and Foreign Patents

Under this heading we shall publish weekly notes of some of the more prominent home andforeign patents.

Applications for Extension of Patents

Answers to Correspondents

Official List of Patents

Manufacturing, Mining, and Railroad Items

New Publications

Departments

Correspondence

Business and Personal