Departments
- From the Editor
To Inventors- March 15, 1890
- Letters
Correspondence- March 15, 1890
- Recommended
New Books and Publications- March 15, 1890
- Departments
Notes and Queries- March 15, 1890
Business and Personal- March 15, 1890
Recently Patented Inventions- March 15, 1890
Index of Inventions- March 15, 1890