Besides his smaller treatises, his large, collective works passed through a number of editions, and were everywhere reprinted and studied. Not only was he great in surgery, but he attained a high degree of expertness in midwifery. Among other things, he restored the forgotten practice of podalic version in cases where this procedure is necessary. He died in 1590. The doctrine of Paré on gunshot wounds was rapidly disseminated. From 1550, Maggi, of Bologna, advocated it without giving credit to its real author, and sustained it by decisive experiments. He observed that none of the wounded felt any heat, and that the torn portions of their clothing showed no trace of fire; and he shot balls through packages of powder without setting them on fire. At the same time Lange spread this view in Germany, and Botal, of Turin,{134} took it up (withholding, however, the true author's name). [Illustration: 0153] While Ambroise Paré did not disdain to act as accoucheur, it was his friend and pupil, Jacob Guillemeau (1550-1613), who, in the sixteenth century, most occupied himself with the practice of obstetrics. We owe to Guillemeau the first improvements that the moderns made in this art; for instance, the proposition to rapidly and artificially terminate parturition in cases of considerable haemorrhage or when the woman is taken with convulsions during labor. Guillemeau supported this practice on the authority of Hippocrates, and operated on a great number of patients, proving its value and the danger of its neglect. The Cæsarean operation was known to the ancient Greeks and Romans, but had been abandoned during the Middle Ages. It' remained for the accoucheurs and surgeons of the sixteenth century to re-establish it. Among others, Rousset, physician to the Duke of Savoy, who recommended it very warmly, reported several cases where it had a happy issue for both mother and child. He even reported the most remarkable case of all,--that of a woman who was six times delivered by this operation, and who perished in the seventh confinement, because, as he states, the surgeon who had been accustomed to operate on her was absent. Unfortunately, this case is not authenticated. [Illustration: 0155] Nothing shows better how the art of observation and accurate description of phenomena had progressed at the time of the revival of letters than the number of new diseases of which the authors of that period make mention. Then, for the first time did one read of whooping-cough, miliaria, scurvy, plica polonica, syphilis, and raphania. It is scarcely credible that these diseases fell upon Europe at this particular time. It is more probable that they had a more ancient existence and were not recognized.