in later times was Magna Graecia, and that the stimulus of Greek tradition has always been especially favorable to the development of scientific medicine. Salerno's influence on Bologna is not difficult to trace, and the precious tradition of surgery particularly, which was carried to the northern university, served to initiate a period of surgery lasting nearly two centuries, during which we have some of the greatest contributions to this branch of medical science that were ever made. The development of the medical school at Bologna anticipated by but a short time that of a series of schools in the north Italian universities. Padua, Piacenza, Pisa, and Vicenza had medical schools in the later Middle Ages, the works of some of whose professors have attracted attention. It was from these north Italian medical schools that the tradition of close observation in medicine and of thoroughly scientific surgery found its way to Paris. Lanfranc was the carrier of surgery, and many French students who went to Italy came back with Italian methods. In the fourteenth century Guy de Chauliac made the grand tour in Italy, and then came back to write a text-book of surgery that is one of the monuments in this department of medical science. Before his time, Montpellier had attracted attention, but now it came to be looked upon as a recognized centre of great medical teaching. The absence of the Popes from Italy and the influence of their presence at Avignon made itself felt. While culture and education declined in Italy in the midst of political disturbances, they advanced materially at the south of France.