Features
Spontaneous Ignition of Coal
Quick-Steaming Marine Boilers
The Cornu Helicopter
To-morrow's Weather: How It Is Foretold
The “Express” Coal-Bagging Lighter for Coaling War Vessels in Harbor
By the English Correspondent of the Scientific American
The Sea-Rafts of the Northwest
Breathing Masks and Helmets
Concerning Ears
Chuck for Rock Drills
Window-Blind Guard
New Toy Automobiles
By Our Paris Correspondent
Business and Personal Wants
Departments
- Departments
The Heavens in February
Correspondence
Recently Patented Inventions
Notes and Queries
Index of Inventions
New Books, Etc.
Patents
