Volume 56, Issue 1437supp
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Features
Marine Engines
Kerosene Vs. Gasoline
Machine for Carving Wood Moldings
Self-Igniting Devices for Coal-Gas
American Railway Equipment
Aberration of the Sphericity of the Eye
The World's Coal Production
The Simplex Spraying Nozzle and Water Cooling System
Vanadium Steel
Industrial Application of the Diastases: The most Recent Discoveries
Some Details of the Paris-Madrid Racing Automobiles
Specially Prepared for the Scientific American Supplement by our Paris Correspondent
Direct Production of X-Rays in the Air
Trade Suggestions from United States Consuls
Electrical Notes
Engineering Notes
Trade Notes and Recipes
A Simple Circular Computing Scale
The Submarine Boats “Pike” and “Grampus”
Electric Sodium Manufacture in Germany
Hertzian Wave Telegraphy
Dr. Fleming's Third Paper