Volume 123, Issue 4
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Features
Descendants of the Water-Wheel
Installations for Developing Hydroelectric Power upon a Notable Scale
Better Steel Ingots with Less Waste, Chemical Warfare Service School
Fifteen Thousand Photographs per Second
Lubricating the World
Some Facts That Show Why We Are Short of Lubricating Oil, and a Few Suggested Remedies
Some Observations on Eggs
Scientific Principles That Enter Where Least Expected and Are Carried Out Unrecognized
Cutter Versus Sloop
The Past Thirty-Five Years of Racing for the America's Cup
Uncle Samuel's Sweet Tooth
Manufacturing Candy on a Huge Scale to Meet the Demands of the American People
Going to Sea in a Tank
Self-Propelled Models That Make for Better Ships and Less Fuel Consumption