Features
Evolution of Heat from Radium
The "Dreadnought."
Experimental Evolution
Reinforced Concrete on the Pacific Coast
A Gravity Cable Railroad in the Swiss Alps
Detonation of Submarine Mines by Means of Sound Waves
Sand Waves and Their Work
An Ice Automobile
The Inhalatorium, a New Medical Institution
Training Wall
Combination Chair and Life Preserver
Business and Personal Wants
Departments
- Departments
Correspondence
Recently Patented Inventions
Notes and Queries
Index of Inventions
New Books, Etc.
Patents