Scientific American Magazine
Volume 20, Issue 13You are currently logged out. Please sign in to download the issue PDF.
Features
Intermittent Springs—Error in the Works on Physics
Lithograghic Fac-simile Copying Press
Dyeing in France and Contributions of Modern Science to the Art
Velocipede Summary
The Trade in Human Hair
The Manufacture of Iron—The Radcliffe Process
The Northern Pacific Railroad
Manufacture of Pressed and Cut Glass Ware
Douglas' Improved Patent Globe Valve
The East River Bridge
Alexander T. Stewart—A Noble Charity
The Mechanics of Walking
Canadian Patents—How Not to Get Them
Pretended Mechanics
Beet Root Sugar
The Gamgee Process
Gas Monopolies
Patent Case-Desulphurizing Ores
Recent American and Foreign Patents
Editorial Summary
Manufacturing, Mining, and Railroad Items
Answers to Correspondents
Official List of Patents
New Publications
Departments
Correspondence
Business and Personal
