Features
A Zoological Garden for New York
The American Institute Fair
The Origin of Machine-Made Pens
Metallic Fences
New Torpedo Experiments by Capt. Ericsson
Mechanical Inventions
Shearing and Riveting Machinery
Agricultural Inventions
A Novel Candle
New Amalgamator
Engineering Inventions
New Hydraulic Ram
An Improvement in Stovepipes
Palissy Plate
Miscellaneous Inventions
Electric Jewelry
Baptismal Font
Communications Received
Departments
- Departments
Notes and Queries
Business and Personal
Index of Inventions
Patents
