Scientific American Magazine
Volume 10, Issue 12You are currently logged out. Please sign in to download the issue PDF.
Features
Permutating Telegraph Switch
Miscellaneous Summary
New York Markets
Polytechnic Association of the American Institute
Progress of Photography
The Drill and its Office
Casting of a Great Gun--Official Report
Farmers' Club
The Way Inventors, Manufacturers and Consumers are Mutually Benefited
Breech-Loading Small-Arms
The Metropolitan Fair
India-Rubber Once More
What is Meant by the Conservation of Force
Lubricating the Steam-Engine
Recent American Patents
Patent Claims
Special Notices
To Our Readers
Departments
New Books and Publications
Patents Granted for Seventeen Years!
Notes and Queries
