Features
American Naval Architecture
Towers' Patent Broom
Electricity and Some of its Practical Applications
Romance of the Steam Engine
Column of Varieties
Manufacture of Colors
An Evening at the Polytechnic
Who Ought to be Commissioner of Patents?
Inventors More Hopeful—Advice Gratis and Advice for Pay
Productive Consumption of Wealth
A Newspaper Befogged—Ignorance Concerning Patents—McCormick's Reaper Extension
The Polytechnic Association of the American Institute
Patent Claims - February 16, 1861
Whipple's Improved Air Engine
Departments
- Letters
Our Correspondence - February 16, 1861
- Departments
Notes and Queries - February 16, 1861
