Features
Interesting Naval Information by the Secretary of the Navy
Columbian Fair Progress
A Combined Bath And Wash Tub
An Improved Index
Improved Sounding Bridge for Pianos, Etc.
A Heater for use with a Gas Burner
An Improved Package Tie
A Centenarian
A Standard Bicycle
New Fire Boat for New York City--The New Yorker
Photographic Notes- March 7, 1891
The Pennington Air Ship
An Efficient Pipe Cutting Machine
A Stopping and Signaling Mechanism for Locomotives
The Proctor Tower
An Ancient Water Elevator
Scientific American Building Edition- March 7, 1891
The Scientific American
Departments
- From the Editor
To Inventors- March 7, 1891
- Letters
Correspondence- March 7, 1891
- Recommended
New Books and Publications- March 7, 1891
- Departments
Notes & Queries- March 7, 1891
Recently Patented Inventions- March 7, 1891
Business and Personal- March 7, 1891
Index of Inventions- March 7, 1891
