A vigorous, healthy man has just made a good meal. In the midst of the feeling of satisfaction which diffuses itself over all his body, his food is digested with energy and without any bother. The digestive juices perform their work steadily and without causing any annoyance. But let such a man receive some bad news; let some sudden emotion come to excite him, and especially to shock him into profound sadness, and at once his stomach and intestines cease to act upon the food which they inclose, or they at best perform their functions badly. The digestive juices, by which the food materials were gradually being dissolved, are suddenly stricken with inactivity. What might seem to be a stupor comes over the digestive tract, and while the nervous influence which determines digestion ceases entirely, that which tends to bring about the expulsion of material from the digestive tract may become more active and all the material contained in the digestive viscera may, in a short time, be expelled. Relief in Severe Injuries.--Even extremely severe injuries, which inflict serious organic lesions that ordinarily would produce shock and collapse, quite apart from the pain induced, may at moments of excitement pass unnoticed. A soldier often does not know that he is wounded until the flow of blood calls his attention to it, or perhaps a friend points it out to him, or loss of blood causes him to faint. The prostrating effects of even fatal wounds may thus be overcome for a considerable time in the excitement of battle, or because of a supreme occupation by a surpassing sense of duty. There is the well-known story of the young corporal detailed to make a report to Napoleon at a very important crisis of one of his great battles, who made the report with such minute accuracy that it called forth a compliment from Bonaparte, for it involved a very special exercise of memory for details, yet who was actually on the verge of death when he delivered the message. As his duty was accomplished the Emperor, noticing his extreme pallor, said: "But you are wounded, my lad." The young soldier replied, as if, now that duty was done, the consciousness of his wound had just come to him, "No, Sire, I am killed," dropping dead at the Emperor's feet as he uttered the words.