Scientific American Magazine
Volume 6, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Sawmill
Notes on Military and Naval Affairs
United States Circuit Court--New Jersey
Ordnance and Gunnery
The Colors of Coal Tar
The Discoveries of 1861
Sewing Machine Improvements
Good Inventions Lost to the Country--Importance of Encouraging Inventors--What Congress Should Do
Beet-Root Cultivation and Sugar
Extension of Patents--For Whose Benefit They Are Granted
Paraffine
British Patent Law Reform
Clothes Wringers
New-York Railways
Cast-Iron Moldings
Operations at the Brooklyn Navy Yard
Recent Foreign Inventions and Discoveries
Patent Claims
Recent American Inventions
To Our Readers
Submarine Guns
Departments
Correspondence
Notes and Queries
