Scientific American Magazine
Volume 32, Issue 7You are currently logged out. Please sign in to download the issue PDF.
Features
The Excelsior Universal Wood Worker
Patent Law Amendments
Can Ants Talk?
Science Record for 1875
An Ancient Metric System
The Sewing Machine
Prospects for 1875
The Underground Railway, New York City
The Belgian Mode of Lowering Miners in Shafts
Baker's Improved Bootjack
Combined Wrench and Bolt Cutter
Practical Mechanism
Improved Camp Lounge
Improved Grate Bar
Remarkable Birds
Recent American and Foreign Patents - February 13, 1875
Decisions of the Courts
Communications Received - February 13, 1875
Canadian Patents - February 13, 1875
Departments
Correspondence - February 13, 1875
Business and Personal - February 13, 1875
Notes and Queries - February 13, 1875
Index of Inventions - February 13, 1875
