The medical system of the future must be a national system co-ordinating all the conditions of health. At the centre we should expect to find a Minister of Health, and every doctor of the State would give his whole time to his work and be paid by salary which in the case of the higher posts would be equal to that now fixed for the higher legal offices, for the chief doctor in the State ought to be at least as important an official as the Lord Chancellor. Hospitals and infirmaries would be alike nationalised, and, in place of the present antagonism between hospitals and the bulk of the medical profession, every doctor would be in touch with a hospital, thus having behind him a fully equipped and staffed institution for all purposes of diagnosis, consultation, treatment, and research, also serving for a centre of notification, registration, preventive and hygienic measures. In every district the citizen would have a certain amount of choice as regards the medical man to whom he may go for advice, but no one would be allowed to escape the medical supervision and registration of his district, for it is essential that the central Health Authority of every district should know the health conditions of all the inhabitants of the district. Only by some such organised and co-ordinated system as this can the primary conditions of Health, and preventive measures against disease, be genuinely socialised. These views were put forward by the present writer twenty years ago in a little book on _The Nationalisation of Health_, which, though it met with wide approval, was probably regarded by most people as Utopian. Since then the times have moved, a new generation has sprung up, and ideas which, twenty years ago, were brooded over by isolated thinkers are now seen to be in the direct line of progress; they have become the property of parties and matters of active propaganda. Even before the introduction of State Insurance Professor Benjamin Moore, in his able book, _The Dawn of the Health Age_, anticipating the actual march of events, formulated a State Insurance Scheme which would lead on, as he pointed out, to a genuinely National Medical Service, and later, Dr. Macilwaine, in a little book entitled _Medical Revolution_, again advocated the same changes: the establishment of a Ministry of Health, a medical service on a preventive basis, and the reform of the hospitals which must constitute the nucleus of such a service. It may be said that for medical men no longer engaged in private practice it is easy to view the disappearance of private practice with serenity; but it must be added that it is precisely that disinterested serenity which makes possible also a clear insight into the problems and a wider view of the new horizons of medicine. Thus it is that to-day the dreamers of yesterday are justified.