Departments
- Letters
Correspondence- November 2, 1893
- Recommended
New Books and Publications- November 2, 1893
- Departments
Business and Personal- November 2, 1893
Notes and Queries- November 2, 1893
Recently Patented Inventions- November 2, 1893
Index of Inventions- November 2, 1893
To Inventors- November 2, 1893