Society as constituted under whatever form of government is more or less incomplete in its organization. Evolution, here as elsewhere, is working out the destiny of social affairs. New sociologic problems arise with every advance in our commercial relations, our manufacturing interests and our knowledge of the useful arts and sciences. Especially is this true as it relates to the causes and prevention of diseases. A fundamental principle, recognized by the earliest patriarchial, tribal and feudal forms of society, up to the highest development of representative governments, is the right of the individual to protection against physical harm from his enemies. It is only an elaboration of this principle which makes it the business of the State to do for the mass of individuals, for the good of society, what can not be done or so well done by the individuals themselves.
In return for this protection and share in