The French Beet Sugar Industry

Crushed Steel and Steel Emery

An Artificial Abrasive Produced from Steel

Improved Filtering and Sterilizing System

The Langley Aerodrome

Trying to Stop the Work of the Teredo

The New Department of Commerce

The Apparent Change of Position of the Bull's Eye on a Target during the Day

Crystallized Peroxide of Hydrogen

The Radio-Activity of Uranium

How some Important Results in Plant Breeding are Accomplished

The Scientific Aspect of Modern Medicine

The Naval War Game between the United States and Germany.—XI

Contemporary Electrical Science

High Temperature Electro-Chemistry: Notes on Experimental and Technical Electric Furnaces

Venomous Serpents.—V

Trade Suggestions from United States Consuls

Patents!