Features
End of the Vienna Patent Congress
Hoe's New Printing Press
The Balloon Voyage to Europe
Modern Miracles
Theories of the Sun Spots
Accident to the New Docks
Scientific and Practical Information - September 13, 1873
Hay Fever
The Large Floating Derrick
The Magic Lantern as a Means of Demonstration
The Great Exposition--Letter From United States Commissioner Professor R. H. Thurston
The Hydraulic Propeller--a Novel Mode of Marine Propulsion
Improved Turbine Water Wheel
The Persian Pavilion at Vienna
The American Association for the Advancement of Science
A Grand Medal for Cleveland
Recent American and Foreign Patents - September 13, 1873
American Manufactures at Vienna
Answers to Correspondents - September 13, 1873
Communications Received - September 13, 1873
Departments
- Letters
Correspondence - September 13, 1873
- Departments
Notes and Queries - September 13, 1873
Business and Personal - September 13, 1873
Index of Inventions - September 13, 1873
