Volume 27, Issue 25
You are currently logged out. Please sign in to download the issue PDF.
Features
Concentrated Solar Rays
The President's Message and the Vienna Exposition
The Vienna Exposition--Professor Thurston Explains
Steam Engine Economy and Steam Boiler Economics
Germany in the Vienna Exposition
Horace Greeley
Torpedo Warfare
On the Resistance of Buildings Stones to Fire
New Burlington House, Piccadilly, London
New Method of Brewing
Button Hole Cutter
Patents in Japan
A Patent Poisonous Pavement
Key Seat Cutting Machine
Improved Drawing Table
Another Terrible Boiler Explosion in Ohio
The New Prussian Rifle
A Novel Railway Ferry Boat
Phineas L. Slayton
Decisions of the Courts
United States Circuit Court, Eastern District of New York
Answers to Correspondents
Recent American and Foreign Patents
Communications Received
Value of Patents, and How to Obtain them
Practical Hints to Inventors