Features
Ocular Color Spectra and Their Causation
Is the Universe Composed Entirely of Hydrogen!
Berthelot's New Electro-Chemical Discoveries
Shall We Change Our Weights and Measures?
A New Theory of Hay Fever
New Gatling Gun
Improved Mortising Machine
Improved Split Wheel
Improvements in Fire Engines
A New Soldering Machine
Potato Pest Poison.
Practical Mechanism - August 19, 1876
Improved Woodworking Machinery - August 19, 1876
Leland's Pipe Coupler
Two Beautiful Palms
Meteorites - August 19, 1876
Recent American and foreign Petents - August 19, 1876
Exhibits of Foreign Technical Schools at the Centennial
New Household Inventions - August 19, 1876
New Agricultural Inventions - August 19, 1876
New Chemical and Miscellaneous Inventions - August 19, 1876
New Mechanical and Engineering Inventions - August 19, 1876
Communications Received - August 19, 1876
The Validity of Patents - August 19, 1876
Departments
- Letters
Correspondence - August 19, 1876
- Departments
Business and Personal - August 19, 1876
Notes and Queries - August 19, 1876
Index of Inventions - August 19, 1876
