Volume 13, Issue 4
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Features
Notes on New Discoveries and New Applications of Science
The Pacific Railroad
Recent American Patents
Miscellaneous Summary
Destruction of Barnum's Museum
Farmers' Club
To Our Readers
The Pipe of Peace
Magenta and its Derivative Colors
How to Set a Slide Valve
Special Notices
Resignation of the Commissioner of Patents
Is a National Debt Capital
Mismanaged Concerns
New Commissioner of Patents
Patent Claims
Issued from the United States Patent-Office