Features
National Swamp Reclamation
The Use of the Gyroscope in Connection with Airships
Light on the Quebec Bridge Disaster
Electric Sunstroke
The New Bridge over the Wissahickon at Philadelphia
The Transit of Mercury
The Enlargement and Reconstruction of Governor's Island
The Peters Self-Registering Electric Target for Rifle Ranges
By the English Correspondent of the Scientific American
The Nests and Nurseries of Insects
Some Experiments with a Mirror
Patent Department - November 30, 1907
An Improved form of Reinforced Concrete Pipe
Combined Water Heater, Filter, and Cooler
A New Type of Storage Battery
Improved Boring Bar
Departments
- Letters
Correspondence - November 30, 1907
- Departments
The Heavens in December 1907
Index of Inventions - November 30, 1907
Recently Patented Inventions - November 30, 1907
Patents - November 30, 1907
