It was this tendency of the Arabs that passed over to the Western Europeans with Arabian commentaries on philosophy and science, and brought so many similar discussions in the scholastic period. These trivialities have usually been supposed to originate with the scholastics themselves, for they are not to be found in the Greek authors on whom the scholastics were writing commentaries, but they are typically Oriental in character, and it must be remembered that during the twelfth and early thirteenth centuries, at least, Greek philosophy found its way largely into Europe in Arab versions, and these characteristically Arabian additions of the discussion of curious trivial questions came with them and produced an imitative tendency among the Europeans. As a rule the more careful has been the study of Arabian writers in the modern time, particularly by specialists, the clearer has it become that they lacked nearly all originality. Especially were they faulty in their observations; besides, they had a definite tendency to replace observation by theory, a fatal defect in medicine. The fine development of surgery that came at the end of the Arabian period of medicine in Europe could never have come from the Arabs themselves. Gurlt has brought this out particularly, but it will not be difficult to cite many other good authorities in support of this opinion. Hyrtl, in his "Thesis on the Rarer Old Anatomists,"[7] says that "the Arabs paid very little attention to anatomy, and, of course, because of the prohibition in the Koran, added nothing to it. Whatever they knew they took from the Greeks, and especially Galen. Not only did they not add anything new to this, but they even lost sight of much that was important in the older authors. The Arabs were much more interested in physiology; they could study this by giving thought to it without soiling their hands. They delighted in theory, rather than in observation." While we thus discuss the lack of originality and the tendency to over-refinement among the Arabian medical writers, it must not be thought that we would make little of what they accomplished. They not only preserved the old medical writers for us, but they kept alive practical medicine with the principles of the great Greek thinkers as its basis. There are a large number of writers of Arabian medicine whose names have secured deservedly a high place in medical history. If this were a formal history of Arabian medicine, their careers and works would require discussion. For our purpose, however, it seems better to confine attention to a few of the most prominent Arabian writers on medicine, because they will serve to illustrate how thoroughly practical were the Arabian physicians and how many medical problems that we are prone to think of as modern they occupied themselves with, solving them not infrequently nearly as we do in the modern time. VI THE MEDICAL SCHOOL AT SALERNO