Features
Recent Armor Plate Trials
Experiments with Soap Bubbles
A Convenient Ribbon Holder
An Improved Window Screen
Old Clocks
Lighthouses, Lightships, and Buoys
Manufacture of Felt Hats
The Columbia
The Otocyon
Departments
- Letters
Correspondence- September 10, 1892
- Departments
Recently Patented Inventions- September 10, 1892
Business and Personal- September 10, 1892
Notes & Queries- September 10, 1892
Index of Inventions- September 10, 1892
To Inventors- September 10, 1892
