Features
“Gasocution”
A Pneumatic Ventilator
Work on the Sewers of Paris
An Improved Nut Lock
A Digging Machine to Deepen Channels, Etc.
An Improved Recording Thermometer
A Combined Rubber Stamp Vulcanizer and Press
Railroad Construction in Old and Modern Times
The Mont Blanc Observatory
Electric Propulsion of Canal Boats
The Manufacture of Desiccated Cocoanut
Improved Steam Steering Gear
To Inventors
Departments
- Departments
Correspondence
New Books and Publications
Business and Personal
Notes and Queries
Recently Patented Inventions
Index of Inventions
