Scientific American Magazine
Volume 21, Issue 1You are currently logged out. Please sign in to download the issue PDF.
Features
A One-Needle Family Knitter, Determinations of Free Oxygen, and more
Facts About Gas for the People
Skill, Invention, and Property in Patents and Books
Rockwell's Overdraw and Compression Bit
Adjustable Spirit Level Plumb and Inclinometer
Improved Horseshoe Clincher
Improvement in Window Sashes
Cornish Pumping Engines
The Claims of Genius
Property in Patents and Copyrights
Cheap Iron Fences
Architectural Engineering
Death of a Distinguished Editor
Testing Steam Engines
New Publications
The Present Status of Medical Science
Recent American and Foreign Patents
Answers to Correspondents
Official List of Patents
Applications for Extension of Patents
Departments
Correspondence
Business and Personal
