Volume 80, Issue 2069supp
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Features
A Mammoth Driving Wheel Lathe
An Exceptional Machine Capable of Doing Very Heavy Work
Protection against Insect Pests
Advances in General Physics
Notes on Several Branches of Science in Which Our Knowledge has Increased
Making Munitions of War in England
Making Zinc in Japan
Evolution of the Pulp and Paper Industry
Achievements in an Industry Typical of Modern Chemical Engineering
Harvesting Ice
New Methods of Cutting, Storing and Shipping the Natural Product
Definition and Classification of Lime
The British Quick-Firing Field Gun
A Type of the Weapons that are so Extensively Used in the European War
The Therapeutic uses of Preparations of the Ductless Glands—II
Notes on Experimental Investigations of Undoubted Future Value
Who Killed Cock Robin?
Notes on the Tariff History of Coal-Tar Dyes
A Fly Exhibition
Submarines and Torpedoes
How They are Operated, Maneuvered and Navigated
Electric Smelting of Copper Ores
Physical Theory of Jupiter
Powdered Coal
Revival of an Old Idea for Utilizing Coal Economically
A New Way of Measuring Mental Ability
Studying the Psychology of the Individual
Artificial Organic Dyes
Using Air for Ballast
Theory of Vertical Control of Balloons
Tillage of the Soil by Minute Living Organisms
The Jitney Problem—I
Its Regulation, Its Relation to Street Railways, and How They Can Meet the Movement