Features
Variations in the Boiling Point
Farmers' Club
Clark's Window-Sash Lock
Vandewater's Turbine Water Wheel
Polytechnic Association of the American Institute
Drill Chucks
The Effects of the War Upon the Industrial Arts
Crediting Extracts
The Suez Canal
Patent Claims
Issued from the United States Patent-Office
Market for the Month
Recent American Patents
Miscellaneous Summary
Departments
- Departments
Correspondence
Patents
Notes and Queries