Volume 13, Issue 26
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Features
The Strength of Cast-Iron Pillars
Smithsonian Report
Recent American Patents
Foreign Correspondence
The Foot Lathe
Report of the Chief of the Bureau of Ordnance of the Navy Department
Separating Gold by Lead
Engineering Energy in America
To Whom It May Concern
Supplement
Boiler Incrustations
Preserving Timber
To Our Readers
The Rights of Joint Patentees
End of the Volume
Patent Claims
Issued From the United States Patent-Office