Features
Protests from Manufacturers
Dr. Augustus Le Plongeon's Latest and most Remarkable Discoveries in Yucatan
American Standard for Boilers
Suggestions for Inventors
Improvements in Men and Machines
The Cheapness of Cost
Memorandum Book and Pad
Improved Torpedo Boat
New Lathe Chuck
Saw Tooth
The Atmospheric Turbine
The Sectional Steamer Le Stanley
Fire Escape
Animal Trap
Mechanical Inventions - April 19, 1884
Engineering Inventions - April 19, 1884
Miscellaneous Inventions - April 19, 1884
Departments
- Letters
Correspondence - April 19, 1884
- Recommended
New Books and Publications - April 19, 1884
- Departments
Business and Personal - April 19, 1884
Notes and Queries - April 19, 1884
Index of Inventions - April 19, 1884
