Atoms and Ions—I
A Comprehensive Discussion Especially as Related to Gases
Volume 79, Issue 2052supp
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Features
Whetstones in the United States National Museum
Why Vocational Guidance?
Misdirection of Abilities avoided and Future Success Made More Certain
Coaling United States Warships
By Special Vessels with Ingenious Fittings to do the Work Rapidly
The Rifling of Firearms
Why it is Necessary, and Some of the Principles Involved
The Dyestuff Situation
Reasons why the Establishment of Competative Plants Would Be Poor Financial Policy
Arthur Von Auwers
The Motor Truck in Modern Military Service
Many Uses for Motor Vehicles Which Have Become Indispensable in War
The Evolution of the Elements: The Evidence of the Stars
That the Various Chemical Elements Merge Into One Another by a Process of Evolution
Manufacture of Antiseptics
Manufacture of Gasoline by “Cracking” Heavy Oils
Temperature Coefficient of Magnetic Permeability within the Working Range
The Evolution of the Etrich “Taube”
How a Seed-pod Was Developed into an Aeroplane
An Electric-Steam Wrecking Crane
The Formation of Ozone in the Upper Atmosphere—I
And its Influence on the Optical Properties of the Sky