Volume 28, Issue 18
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Features
The Case of Phelps, Dodge & Co
The Broadway Underground Railway
Injustice to Workmen
Fireproof Safes
A New Reading of an Old Record
The Circulation of the Blood
Death of Baron von Liebig
Scientific and Practical Information
The Problem of the Coming Transits
Codeine
Bale Tie Fastener
Early History of Steam Navigation--The First Screw Propeller
The Wonders of the Egg
Stevens Institute Lectures--Sunlight and its Source
Trials of the Ellis Vapor Engine
Improved Spectroscope
Improved Wagon Brake
Improved Fly Trap
The Agricultural Machine Works of Chicago
New Machine for Sinking Well Tubes
Chemical Notes
Decisions of the Courts - May 3, 1873
United States Circuit Court--District of Massachusetts