The Medical School at Salerno, probably organized early in the tenth century, often spoken of as the darkest of the centuries, and reaching its highest point of influence at the end of the twelfth century, is of great interest in modern times for a number of reasons. First it brought about in the course of its development an organization of medical education, and an establishment of standards that were to be maintained whenever and wherever there was a true professional spirit down to our own time. They insisted on a preliminary education of three years of college work, on at least four years of medical training, on special study for specialist's work, as in surgery, and on practical training with a physician or in a hospital before the student was allowed to practise for himself. At Salerno, too, the department of women's diseases was given over to women professors, and we have the text-books of some of these women medical teachers. The license to practise given to women, however, seems to have been general and did not confine them merely to the care of women and children. We have records of a number of these licenses issued to women in the neighborhood of Salerno. This subject of feminine medical education at Salerno, because of its special interest in our time, will have a chapter by itself. These are the special features of medical education in our own time that we are rather prone to think of as originating with ourselves and as being indices of that evolution of humanity and progress in mankind which are culminating in our era. It is rather interesting, then, to study just how these developments came about and what the genesis of this great school was. The books of its professors were widely read, not only in their own generation but for centuries afterwards. With the invention of printing at the time of the Renaissance most of them were printed and exerted profound influence over the revival of medicine which took place at that time. Salerno became the first of the universities in the modern sense of the word. Here there gathered round the medical school, first a preparatory department representing modern college work, and then departments of theology and law, though this latter department particularly was never quite successful. The fact that the first university, that of Salerno, should have been organized round a medical school, the second, that of Bologna, around a law school, and the third, that of Paris, around a school of theology and philosophy, would seem to represent the ordinary natural process of development in human interests. First man is interested in himself and in his health, then in his property, and finally in his relations to his fellow-man and to God.