Features
Salida Springs and Mines, Zirconia Minerals, and more
Hiram Sibley
The Projected Tunnel between France and England
A Waterproof Lining for Cellars
An Improved Drawing Instrument
An Improved Nut Lock for Valves
A Safety Seal for Checks, Bonds, Etc.
New Chromatrope
An Improved Wrench
Temminck's Chelydra
Tire Furnace
Simple Apparatus for Illustrating Newton's Second Law
Simple Experiments in Physics
Agricultural Inventions - July 21, 1888
Engineering Invention - July 21, 1888
Miscellaneous Inventions - July 21, 1888
To Inventors - July 21, 1888
Departments
- Letters
Correspondence - July 21, 1888
- Recommended
New Books and Publications - July 21, 1888
- Departments
Notes and Queries - July 21, 1888
Business and Personal - July 21, 1888
Index of Inventions - July 21, 1888
