Features
Notes on Boilers
Foreign Scientific News
Thunder Storms--Protection Against Lightning
New Publications
The Markets
Toshach's Sash Support
The Atlantic Telegraph
Birdsall's Pulley
Success the Popular Estimate of Value
An Absurd Tool
The Charges of the Atlantic Telegraph Company
Important Decision--Extension of Tanners's Car-Brake Patent
Patent Claims
Issued from the U. S. Patent Office
The Great Organ at Plymouth Church
Departments
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Our Special Correspondence
New Inventions
Notes and Queries
