Education: Pegs that Fit

"Pop, what's the difference between a riveter and a welder?"

"Well, son, almost any normal person can be a riveter, but it takes a real tough guy to be a welder."

Nuggets of information such as this are becoming part of the folklore of U.S. industry. Their author is a Los Angeles psychologist who rejoices in the name of Doncaster George Humm. Dr. Humm, who took for his mission in life the job of fitting square pegs into square holes, created a "temperament test" which has made him one of the busiest men in the U.S. war effort. Some 2,000,000 workmen have...

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