Features
How to Detect Counterfeits
Recent American Patents
Extracts from Helmholtz
Merritt's Tree Protector
Condition of New York Machine Shops
The Pneumatic Loom
An Agricultural Museum at Washington
Way Flannels Become Damp
Rowes's Diaphragm Pump
The Crank Motion
The Patent Office
Lighting Paper at a Lamp
Special Notice
Balanced Slide Valves
Rogers's Rain Conductor
Departments
- Departments
Correspondence
Notes and Queries
