practical knowledge of steam and prime movers, could chip, file, work on lathe, planer, drill press or as an assembler, and was competent to meet the varied and unusual conditions found in general construction and repair work."
The young man fortunate enough to secure three years' training at a good trade-school enters a machine shop at the age of 19 and can command $12 per week, equal to the apprentice at 21 years of age. flis three years in school, during which time he was earning nothing, have proven equal to five years practical shop training, but in reality the difference is greater, due to his broader training in theory and general processes. A study of the line of this group shows the advantage to be permanent, the line of average earning being about 50 per cent. above that of the apprentice. The dotted extension of this line shows a possible increase in value, while, of course, a few exceptional men may go far higher. It is for these three groups that the numerous correspondence, night and vocational schools exist, and for them that the home study courses have been planned.
The young man who prepares himself for entrance into a high-grade technical school at the age of 18 is presumed to have a potential value of $4000 at that age, although he is in the non-earning class until he graduates at the age of 22, when his four years' course in the technical school ends. His entering pay in the works puts
