Features
A Commercial Need
Automobile Motors
Average Life of an Iron or Steel Bridge
Firing High Explosives
Activity of American Consuls
British Patents in 1898
Liquid Air in Medicine and Surgery
A Prize for a Life-Saving Appliance
Steel Dredges for New York Harbor
An Improved Flue-Stopper
A New Wagon-Tongue Support
An Improved Turbine Water-Wheel
Wurdemann's Dividing Engine
Conservation of Energy in the Human Body
The Pearl-Button Industry of the Mississippi River
The Submarine Vessel "La France"
Three-Pounder Semi-Automatic Gun
A Subterranean Industrial Plant
Electric Heating in a Carmelite Hospice
Departments
- Letters
Correspondence - August 5, 1899
- Recommended
New Books, Etc - August 5, 1899
- Departments
Recently Patented Inventions - August 5, 1899
Index of Inventions - August 5, 1899
Business and Personal - August 5, 1899
Notes and Queries - August 5, 1899
