“America has so many elements of greatness that it is difficult to decide which is the most important. It is probable that a careful consideration would reveal that the progress of civilization is so much a matter of interdependence that we could not dispense with any of them without great sacrifice…[O]ne of the most important factors of our everyday existence is the public health, which has come to be dependent upon sanitation and the medical profession…This great work is carried on partly through private initiative, partly through Government effort, partly by a combination of these two working in harmony with the science of chemistry, of engineering, and of applied medicine. In its main aspects it is preventive, but in a very large field it is remedial. Without this service our large centers of population would be overwhelmed and dissipated almost in a day and the modern organization of society would…