Features
Combined Reciprocating and Turbine Engines
Fulton the Father of Commercial Steamboat Navigation
Health Conditions in the Subway
The Competition for the Scientific American Flying Machine Trophy
“Black Art” Redivivus
Striking a Light
Some Notable German Bridges
The Races for the Astor and King's Cup
The Sheep-Killing Kea
Variable Pressure Mechanism for Air Brakes
Departments
- Departments
The Heavens in September
Index of Inventions
New Books, Etc.
Recently Patented Inventions
Patents
