Features
The Change in the Panama Canal
One Effect of Sham Battles
Decisions Relating to Patents - December 17, 1887
Photographic Notes - December 17, 1887
Mechanical Cooperage
An Improved Hinge
An Improved Metallic Railroad Tie
A Combined Level and Rule
An Improved Sash Holder
An Improved Vehicle Brake
A Cultivator, Duster, and Digger
The Brussels International Exhibition, 1888
Single Fluid Battery
An Automatically Working Railroad Gate
The Distillation of Fruits and Manufacture of Brandy
Miscellaneous Inventions - December 17, 1887
Special - December 17, 1887
The Despair of Science
Engineering Inventions - December 17, 1887
Agricultural Inventions - December 17, 1887
To Inventors - December 17, 1887
Departments
- Letters
Correspondence - December 17, 1887
- Recommended
New Books and Publications - December 17, 1887
- Departments
Business and Personal - December 17, 1887
Notes and Queries - December 17, 1887
Index of Inventions - December 17, 1887
