The anatomical teaching in Paris in the early part of the sixteenth century was far from satisfactory. There was too much lecturing and theorizing from Galen’s texts, and too little of actual dissection. Vesalius, who was not backward in his criticisms, says that the dissections were made by ignorant barbers, and during the whole time that he was in Paris he never saw Guinterius use a knife upon a cadaver. Only at rare intervals was a human body brought into the amphitheatre, and then the dissection lasted less than three days. It comprised only a superficial study of the intestines and abdominal muscles; no other muscles were studied. The bones, veins, arteries and nerves were almost wholly ignored. The great lights of the Paris profession were totally unfit to give to the young Belgian what was his heart’s desire. They were ignorant and knew it not. It is not surprising that, on more than one occasion, Vesalius brushed the ignorant prosectors aside, took the knife into his own hands, and carried out the dissection in a systematic manner. His zeal and learning won the admiration of Guinterius who spoke of Vesalius and Servetus in loving terms;—“first Andreas Vesalius, a young man, by Hercules! of singular zeal in the study of anatomy; and second, Michael Villanovanus (Servetus), deeply imbued with learning of every kind, and behind none in his knowledge of the Galenic doctrine. With the aid of these two, I have examined the muscles, veins, arteries and nerves of the whole body, and demonstrated them to the students”.[19]