Volume 85, Issue 2212supp
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Features
Types of Military Airplanes
The Possibilities of the Bomber
On the Theory of Electrodynamics
Manufacture of Silica Bricks
The Maple Tree Helps to Relieve Sugar Shortage
An Old-Time Industry Neglected of Late
Sea Gulls as Scavengers
Limiting the Rule of Kings
The Weight of Spanish Cedar
Problems of Atomic Structure-III
Defferences Characteristic of Different Elements, and Mechanism of the Molecule
Tree Planting for Forests
New Vegetable Dye from Corea
Panama Hats
The Chief Industry of Southwestern Porto Rico
What is Tonnage?
Odd Paintings by American Indian
The Art of Perpetuation
Museums the Result of Man ' s Acquisitiveness
Electric Boiler-Heating for Steam Locomotives
The Total Eclipse of the Sun of June 8, 1918
Where it can be Seen and What Amateur Observers can see
Covering Power of Lenses and Stray Light in the Camera
Alcohol in Internal Combustion Motors
The Corrodibility of Cast Iron
Volcanic Eruptions
A Possible Explanation of the Mechanical and Thermo-Dynamic Results
Nuts from the Forests
Native Trees and Shrubs Furnish a Large Variety of Fruits, Nuts, and Other Edibles