Features
Railroad Jack
Adulteration of Articles in General Use
Scientific Intelligence- March 11, 1871
Planking Screw
Improved Washing Machine
Rambles for Relics
Progress of Foreign Invention- March 11, 1871
Dyers' Recipes- March 11, 1871
Payne's Electro-Magnetic Motor
The Transmission of Power by Compressed Air
Effect of Cold Upon Iron and Steel
Mr. Cooper's Recent Gift to the Mechanics of New York
The Present and the Past- March 11, 1871
Death of Thomas Brassey, the Great English Railway Contractor
Queries- March 11, 1871
A Philanthropic Temperance Man
New Patent Law of 1870
Answers to Correspondents- March 11, 1871
Recent American and Foreign Patents- March 11, 1871
Official List of Patents- March 11, 1871
Departments
- Letters
Correspondence- March 11, 1871
- Recommended
New Books and Publications- March 11, 1871
- Departments
Business and Personal- March 11, 1871
