Features
Another Polar Expedition
The Manufacture of Birch Oil
The Arrow Weed and Mexican Jumping Beans
A Device to Hold Books in Order
A Singular Bridge Accident
An Automatic Car Brake
Coalbrookdale Bridge
The Edison Electric Illuminating Co.'s Central Station in Brooklyn, N. Y.
The World's Fair Buildings at Chicago
The Train Staff Block System
An Improved Barrel Making Machine
An Improved Ore Concentrator
A Simple and Effective Nut Lock
Simple Aerial Top
Departments
- Letters
Correspondence- June 13, 1891
- Recommended
New Books and Publications- June 13, 1891
- Departments
Business and Personal- June 13, 1891
Notes and Queries- June 13, 1891
Recently Patented Inventions- June 13, 1891
To Inventors- June 13, 1891
Index of Inventions- June 13, 1891
