Features
Heavy Guns and the Best Armor
A Feeder for Stoves and Furnaces
An Automatic Frisket for Printing Presses
An Elevator Door Operating Device
The Chacma or South African Baboon
The Largest of Our New War Ships
The St. Clair Tunnel Drainage System
The Tocci Twins
Experiments in Prestidigitation
The Galapagas Tortoises
Model Battleship at the World's Columbian Exposition
Departments
- Letters
Correspondence- December 5, 1891
- Departments
Business and Personal- December 12, 1891
Notes and Queries- December 12, 1891
Recently Patented Inventions- December 12, 1891
Index of Inventions- December 12, 1891
To Inventors- December 12, 1891
