The story of the medical school of Salerno, even thus briefly and fragmentarily told, illustrates very well how old is the new in education,--even in medical education. There is scarcely a phase of modern interest in medical education that may not be traced very clearly at Salerno though the school began its career a thousand years ago, and ceased to attract much attention over six hundred years ago. We owe most of our knowledge of the details of its organization and teaching to De Renzi. Without the devotion of so ardent a scholar it would have been almost impossible for us to have attained so complete a picture of Salernitan activities. As it is, as a consequence of his work we are able to see this first of modern medical schools developing very much as do our most modern medical schools. There has been an accumulation of medical information in the thousand years, but the ways and modes of facing problems and many of the solutions of them do not differ from what they were in the distant past. The more we know about any particular period, the more is this brought home to us. It is for this that study of particular periods and institutions of the olden time, as of Salerno, grows increasingly interesting, because each new detail helps to fill in sympathetically the new-old picture of human activity as it may be seen at all times. VII CONSTANTINE AFRICANUS Probably the most important representative of the medical school at Salerno, certainly the most significant member of its faculty, if we consider the wide influence for centuries after his time that his writings had, was Constantine Africanus. He is interesting, too, for many other reasons, for he is the first representative, in modern times, that is, who, after the incentive of antiquity had passed, devoted himself to creating a medical literature by translations, by editions, and by the collation of his own and others' observations on medical subjects. He is the connecting link between Arabian medicine and Western medical studies. The fact that he was first a traveller over most of the educational world of his time, then a professor at the University of Salerno who attracted many students, and finally a Benedictine monk in the great abbey at Monte Cassino, shows how his life ran the gamut of the various phases of interest in the intellectual world of his time. It was his retirement to the famous monastery that gave him the opportunity, the leisure, the reference library for consultation that a writer feels he must have near him, and probably also the means necessary for the publication of his works. Not only did the monks of Monte Cassino itself devote themselves to the copying of his many books, but other Benedictine monasteries in various parts of the world made it a point to give wide diffusion to his writings.