American Industries, No. 34
THE MANUFACRURE OF PUNCHING AND DRAWING PRESSES, DROP HAMMERS, DIES, ETC.
Features
Who Shall Hold the Surplus?
Regulation of Shifting River Channels
The Drive Well in New York City
Ferdinand De Lesseps and the Chagres Canal
Improved Mould for Sewer Building
A New Fruit Drier
Improved Roller Gate
Novel Method of Carpeting Stairs
A Novel Small Motor
New Gas Saver
Cheap Spectroscope
Agricultural Inventions
Improved Controlling Valve for Engines
New Potato Digger
The Leaf Mormolyce
Natural History Notes
The Condition of French Workmen
Improved Cam for Stamp Mills
Electric Lamp Tests
Communications Received
Departments
- Departments
Business and Personal
Notes and Queries
Index of Inventions
New Books and Publications
Patents
