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 of course, be admitted that the population contains a certain percentage of the physically incapable, the mentally defective, and the morally uncontrolled. The treatment of these classes, all must agree, is and must be based on other principles than those of economics. One class requires punitive discipline, another needs life-long care, a third—the mentally and morally sound but physically defective—must depend, to its misfortune, on private and public charity. There is no question here of payment for a function, but of ministering to human suffering. It is, of course, desirable on economic as well as on broader grounds that the ministration should be so conceived as to render its object as nearly as possible independent and self-supporting. But in the main all that is done for these classes of the population is, and must be, a charge on the surplus. The real question that may be raised by a critic is whether the considerable proportion of the working class whose earnings actually fall short, as we should contend, of the minimum, could in point of fact earn that minimum. Their actual value, he may urge, is measured by the wage which