Features
Polytechnic Association of the American Institute
The Mining of Coal by Machinery
The Manufacture and Cutting of Flint Glass
Storms
Valuable Receipts
A Visit to Pompeii
The Iron-Clad Steam Battery, “Roanoke”
Frictional Gearing
Progress of Modern Manufactures
The Preparation of Food
Lancashire--Its Population and Manufactures
Sanitary Condition of New York
A Large Screw Propeller
Miscellaneous Summary
Valuable Work for Inventors, Patentees and Manufacturers
Patent Claims
Discoveries and Inventions Abroad
Recent American Patents
Departments
- Departments
Notes and Queries
