Features
Relation of Rainfall to Boiler Scale
Tunnels Versus Bridges for Rapid Transit
Opening of the New St. Lawrence Canal Locks
"Advance Sheets" of the German Consular Reports
Our Exports of Iron and Steel
Ancient Egyptian Porcelain
Railway Safety Appliances - December 16, 1899
New York's Trade in Wild Animals
Tropical Products of Our New Possessions
The Automobile Cup
A Tool for Reloading Empty Cartridge Shells
The Naval Guns at Ladysmith
Hauling Logs by Motor Trucks
The Engines of the First-Class Battleship "Wisconsin"
The Trojan Horse at the Paris Opera House
A California Verde Antique Quarry
A New Safety Valve
A New form of Fire-Escape and Lowering Apparatus
A Novelty in Railroad Collisions
A Switch-Throwing Device for Cars
How Sculptors Change the Scale of Their Statues
Departments
- Letters
Correspondence - December 16,1899
- Recommended
New Books, Etc - December 16,1899
- Departments
Business and Personal - December 16, 1899
Recently Patented Inventions - December 16, 1899
Notes and Queries - December 16, 1899
Index of Inventions - December 16,1899
Patents - December 16, 1899
