Features
The Celebration of the Beginning of the Second Century of the American Patent System
Position of the Planets in April
Oriental Method of Vaulting
A Clasp for Connecting Timbers
A Spring Device for Singletrees
An Improved Cable Railway Crossing
A New Park for New York
A Fish Habitation
Experiment in Specific Gravity of Fluids
Scientific American Building Edition- March 28, 1891
Advertisements
Experimental Science- March 28, 1891
The Scientific American Publications for 1891
The Scientific American Established 1846- March 28, 1891
Departments
- Letters
To Inventors- March 28, 1891
- Recommended
New Books and Publications- March 28, 1891
List of Books
- Departments
Business and Personal- March 28, 1891
Notes & Queries- March 28, 1891
Recently Patented Inventions- March 28, 1891
Index of Inventions- March 28, 1891
