Features
America's Industrial Supremacy Assured
New York Academy of Sciences
Cheap Patents Cheapen Goods
The “New Pattern” Blake Crusher
Mechanical Inventions
Simple Burglar Alarm
American Industries.-No. 37
Improved Plant Sprinkler
Improved Pruning Implement
Improvement in Jackscrews
Scissors and Scale Measure
Engineering Inventions
New Lubricator for Steam Engines
Miscellaneous Inventions
Peripatus Capensis
Venus' Girdle
Specters in the Air
Communications Received
Departments
- Departments
Correspondence
Business and Personal
Index of Inventions
