We shall not stop to discuss the authenticity of these documents; they have characteristics that make their genuineness almost indisputable. Besides, we can quote other authors against whom no arguments can be used; for instance, we will cite John of Gaddesen, a physician of the English Court, who affirmed that sexual connection with a leprous woman produced ulcers of the penis;[37] besides, his compatriot Gilbert, who described in his _Compendium Medicinal_, in the year 1300, the treatment of gonorrhœa and chancre so common after the Crusades; or Gui du Chauliac, who in 1360 noticed “the ulcers born of commerce with a tainted woman, impure and chancrous (_ex coitu cum fœtida vel immunda vel cancrosa muliere_).”[38] Again, note Torella, of Italy, who considered pox as a contagious malady which had existed from times of antiquity, and which had made its appearance at different epochs, but of which the symptoms, poorly understood by medical men, prevented isolation and its proper pathological identity.[39] We need not reproduce the text of all the French and especially the Italian doctors, who established the identity of venereal diseases _before the year_ 1494—such writers as Montagnana, Petrus Pintor, Nicolas Leonicenus, Joseph Grunpeck, etc. As to these works, they have all been mentioned by Fracastor, in his celebrated _Treatise on Contagious Diseases_ (_de morbis contagiosis_), a work at once a fine poem, whose Latinity is perfect and a monograph of true scientific exactitude. Fracastor described the patient as well as the disease: “The victims were sad and broken with pale faces.” “They had chancres on their private parts; these chancres were changeable; when cured at one point they reappeared at another; they always broke out again.” “Pustules with crusts were raised on the skin; in some these commence on the scalp first; this was the usual case; in a few they appeared elsewhere. At first these were small, afterwards increasing in size, appearing like unto the milk crust in children. In some these pustules were small and dry—in others large and humid. Sometimes they were scarlet, sometimes white, sometimes hard and pink. These pustules opened at the end of some days, pouring out an incredible quantity of stinking and nasty liquid, once opened they became true phagedenic ulcers, which not only consumed the flesh but even the bone.” “Those whose upper regions were attacked had malignant fluxions, that eat away the palate, the trachea, the throat and the tonsils. Some patients lost their lips, others their noses, others their eyes, others their private parts.” “Large gummy tumors appeared in many and disfigured the limbs. These growths were often the size of an egg or a French roll of bread. When opened these tumors discharged a whitish mucilaginous liquid. They were principally noted on the arms and legs; while ulcerating sometimes they grew callous, at other times remaining as tumors until death.”