The wards of the great charity hospitals, the institutions of science and medical experiment and research, the Departments of Health, and the Public Health Services are in existence and are equipped for the early determination of clinical, and laboratory facts, and for their dissemination. These are the things towards which their activities are directed in other diseases and conditions affecting public welfare and public health. It would take a very short time to determine the physical facts of addiction-disease--to establish finally and conclusively its clinical symptomatology and constant reactions and phenomena for authoritative and educational dissemination. Every one of us who has written in description or exposition of his study and observations, together with what we have written and taught, should be made the subject of critical and unbiased investigation, and whatever of truth we have stated should be made the possession of all. The experimental development of addiction-disease in dogs and other experimental laboratory animals, the symptoms and phenomena observed in them recorded by instruments such as the sphygmomanometer and the sphygmograph and paralleling similar records and observations upon the addicted human, the reactions of the serum of these animals injected into the non-addicted of their species are not to be lightly ignored, and should be matters of common scientific knowledge. The manifestations of addiction-disease in the new-born developed in the infant’s body prenatally long before vice or habit or appetite can be possibly considered as causative factors, demand more than casual consideration and have a significance much deeper than as occasional curiosities. An educational campaign as to the facts of addiction would save many an innocent person from the contraction of the disease, and many a present sufferer from unintelligent handling. Authoritative bodies with sufficient power and independence might easily institute unbiased review of what is written, and trial and proving out of what is stated by various writers, and give out their findings for the guidance of future work and action. Hospitals and public institutions for the handling of narcotic addicts may be erected. Without comprehension of addiction-disease and full and complete familiarity with its manifestations, the possession of those who work in them, will they accomplish anything of good?