Features
Queer Cattle
The United States Commission on Boiler Explosions
The Uses of Nature
Expected Resignation of the Commissioner of Patents
Experimental Steam Boiler Explosions
Scientific and Practical Information - August 21, 1875
Constancy of the Ocean Level
The St. Louis Bridge
Joining up Cells of Batteries
Korting's Steam Jet Bilge Pump
Smith's Improved Bale Tie
The Electrostatic or Induction Coil
Practical Mechanism - August 21, 1875
Improved Floor Clamp
Improved Sudden Grip Vise
New Reaping and Mowing Machinery
Recent American and Foreign Patents - August 21, 1875
The Chemical Fire-Fly
Canadian Patents - August 21, 1875
Communications Received - August 21, 1875
Departments
- Letters
Correspondence - August 21, 1875
- Departments
Business and Personal - August 21, 1875
Notes and Queries - August 21, 1875
Index of Inventions - August 21, 1875
