Features
Propulsion of Balloons by Electricity
Schooled But Not Educated
Compressed Bran.--One Thousand Dollars Reward for a New Invention
Silk and How it is Dyed
Thomson's Air Extractor
Improved Foundry Cupola
The Isometric Governor
Toy Money Safe
The "Peerless" Engine
Side Show Science
Agricultural Inventions
Mechanical Inventions
Miscellaneous Inventions
Departments
- Departments
Correspondence
Recent Invention
Business and Personal
Index of Inventions
Notes and Queries
