Scientific American Magazine
Volume 7, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Patent Cultivator
Miscellaneous Summary
Valuable Receipts
Strength of Guns and How to Cast Them
The Great Russian Steppes
The Proportions, Form and Dimensions of the Several Classes of War-Ships for Modern Service
[Continued from page 293.]
Iron-Clad Ships Versus Batteries
Polytechnic Association of the American Institute
The British Association for the Advancement of Science--Progress of Practical Mechanics
The “Dailies” on Big Guns
The Control of Steam Boilers
Seventeen Thousand Patents Secured Through Our Agency
Visits to Our Machine Shops-The Allaire Works
Why Money is Worth Only Five Per Cent
The Velocity of Steam and Air Under Pressure
Prosperity of the Cotton Manufacture
Bayonet Charges
Recent American Inventions
The Tools With Which Great Men Work
Patent Claims
To Our Readers
Departments
Correspondence
Notes and Queries
