Features
Insect-Eating Plants
Drugging Horses
Completion of the Hell Gate Excavations
Steam Boiler Phenomena
Celluloid
"Stray Idees"
The New Commissioner of Patents
Life-Saving Apparatus
Water Pressure Engine
An Experimental Aurora
Scientific and Practical Information - September 25, 1875
Roberts' Combined Lamp and Oil Can
Fox's Reversible Cap
A Mercurial Safety Valve
Improved Vise
The Centennial Buildings
Decisions of the Courts - September 25, 1875
Recent American and Foreign Patents - September 25, 1875
Canadian Patents - September 25, 1875
Communications Received - September 25, 1875
Departments
Correspondence - September 25, 1875
- Recommended
New Books and Publications - September 25, 1875
- Departments
Business and Personal - September 25, 1875
Notes and Queries - September 25, 1875
Index of Inventions - September 25, 1875
