In my book on "The Popes and Science" I have gathered the traditions relating to Mondino's assistants in the chair of anatomy at Bologna. They furnish abundant evidence of the fact that dissections, far from being uncommon, must have been not at all infrequent at the north Italian universities at this time. Curiously enough, one of these assistants was a young woman who, as was not infrequently the custom at this time in the Italian universities, was matriculated as a student at Bologna. She took up first philosophy, and afterwards anatomy, under Mondino. While it is not generally realized, co-education was quite common at the Italian universities of the thirteenth and fourteenth centuries, and at no time since the foundation of the universities has a century passed in Italy without distinguished women occupying professors' chairs at some of the Italian universities. This young woman, Alessandra Giliani, of Persiceto, a country district not far from Bologna, took up the study of anatomy with ardor and, strange as it may appear, became especially enthusiastic about dissection. She became so skilful that she was made the prosector of anatomy, that is, one who prepares bodies for demonstration by the professors. According to the "Cronaca Persicetana," quoted by Medici in his "History of the Anatomical School at Bologna": "She became most valuable to Mondino because she would cleanse most skilfully the smallest vein, the arteries, all ramifications of the vessels, without lacerating or dividing them, and to prepare them for demonstration she would fill them with various colored liquids, which, after having been driven into the vessels, would harden without destroying the vessels. Again, she would paint these same vessels to their minute branches so perfectly and color them so naturally that, added to the wonderful explanations and teachings of the master, they brought him great fame and credit." The whole passage shows a wonderful anticipation of our most modern methods--injection, painting, hardening--of making anatomical preparations for class and demonstration purposes.