Features
The Fatigue of Metals
Proposed Bridge across the St. Lawrence at Quebec
The New Rules of Practice of the Patent Office Abrogated
Death of Prof. Fresenius
Interesting Marine Statistics
Municipal Government without Taxation
Settlement of the Vacant Public Lands of the United States
An Improved Bicycle Brake
A Valve Testing and Locking Device
Tests of the Wearing Qualities of Flooring Materials
The "Winged Victory" for the Battleship Massachusetts
An Automatic Railway Switch
An Improved Swing
Parseval's Kite Balloon
The Last of the Yukiahs
Departments
- Letters
Correspondence - July 3, 1897
- Recommended
New Books, Etc. - July 3, 1897
- Departments
Recently Patented Inventions - July 3, 1897
Index of Inventions - July 3, 1897
Business and Personal - July 3, 1897
Notes and Queries - July 3, 1897
Patents - July 3, 1897
