Features
Of Interest to Electricians
The Nicaragua Canal
A Scraper for Sawmill Carriages
An Improved Balanced Slide Valve
Machine for Laying Drainage Pipes
An Improved Safety Valve and Muffler
Homogenetic Enumeration
Sterilization of Water by Heat
Steam Tree-Felling and Cross-Cutting Machinery
Remarkable Experiments with Liquefied Air and Liquefied Oxygen and Other Liquefied Gases
Departments
- Letters
Correspondence- July 9, 1892
- Recommended
New Books and Publications- July 9, 1892
- Departments
Recently Patented Inventions- July 9, 1892
Index of Inventions- July 9, 1892
Business and Personal- July 9, 1892
Notes and Queries- July 9, 1892
To Inventors- July 9, 1892
