Scientific American Magazine
Volume 62, Issue 19You are currently logged out. Please sign in to download the issue PDF.
Features
The Rowell Automatic Railway Safety Stop
Ships and Guns Needed for Defense
Torpedo Boats
An Improved Hat Holder
A Device for Automatically Lighting Fires
An Improved Lawn Mower
An Improved Hoist
An Improved Can Opener
An Improved Switch Signal
An Improved Dust Guard and Ventilator
An Improved Irrigating Apparatus
An Improved Channel Cleaner
New Elevated Railway
Electric Lighting for Amateurs
An Improved Compound Engine
An Improved Dynamometer
To Inventors- May 10, 1890
Departments
Correspondence- May 10, 1890
Recently Patented Inventions- May 10, 1890
Notes and Queries- May 10, 1890
Business and Personal- May 10, 1890
New Books and Publications- May 10, 1890
Index of Inventions- May 10, 1890
