Features
Position of the Planets for January
An Improved Air Cooling Apparatus
An Improved Electric Railway Signal
An Improved Railway Rail Tie
An Improved Raw Water Cut-off
An Automatic Paper Carrier for Drying Rooms
An Improved Friction Clutch
The Great Traveling Crane at Trubia
Armor Plate for War Ships
A New System of Rapid Telegraphy
Poisonous Fish of the Indian Ocean
The Nitrate of Soda Works and Fields of Chile
Departments
- Recommended
New Books and Publications- December 28, 1893
- Departments
Business and Personal- December 28, 1893
Recently Patented Inventions- December 28, 1893
Notes and Queries- December 28, 1893
Index of Inventions- December 28, 1893
To Inventors- December 28, 1893
