The scope and method of modern industry are given by the machine. This may not seem to hold true for all industries, perhaps not for the greater part of industry as rated by the bulk of the output or by the aggregate volume of labor expended. But it holds true to such an extent and in such a pervasive manner that a modern industrial community cannot go on except by the help of the accepted mechanical appliances and processes. The machine industries −− those portions of the industrial system in which the machine process.
