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of a prognosis. So I remarked to the patient: "You will probably soon experience, if you have not already done so, a sensation of something pulling upon the right clavicle." He admitted that he had already noticed this symptom. "Then I will give just one more evidence of this power of divination which you believe that I possess. You, yourself, before I arrived on the scene, had made up your mind that your ailment was an attack of pleurisy, etc."

Glaucon's confidence in me and in the medical art, after this episode, was unbounded.

Thirty or forty years elapsed after Galen's death before the Profession began to realize how great an authority he had become in all matters relating to medicine; not perhaps among the majority of physicians, but among the better educated and those more given to reasoning about the various problems in physiology and pathology. Then came the invasion of Rome by the Barbarians, and with it the scattering of nearly all those who were at the time practicing medicine in that great city. This was the beginning of the long period known as the Middle Ages, a period during which, so far as Italy and Gaul were concerned, the science of medicine made no advance whatever. The physicians living in a precarious manner in the towns, and the monks who practiced medicine in the country districts, took very little interest, as may readily be imagined, in the achievements of Galen. Through all those years they clung to the doctrines of the Methodists, as revealed to them in the work of Caelius Aurelianus, the favorite medical treatise of that period. It was only during the latter part of the Middle Ages that Galen's teachings began once more to be appreciated at their true value; and, as time went on, they gained a stronger and stronger hold on the minds of medical men, until finally they held undisputed sway. Friedlaender, speaking of medicine in those dark times, uses these words: "Galen's colossal personality loomed up throughout that long night as a brilliant guiding star to light the intricate pathways of medicine."