. Elementary biology; an introduction to the science of life . Fig. 71. Treating a cut When the pressure of the thumb is not sufficient to compress the blood vessels and stop the flow, a tourniquet may be used, made by tying a handkerchief about the limb and twisting it tight by means of a stick slipped under the handkerchief. Of course, the tourniquet or the bandage applied in this way is to be considered an emergency measure, and steps should be taken to have the wound attended to by a physician one of the dangers of the athletic enthusiasm is that a student will overdevelop his heart. But o
. Elementary biology; an introduction to the science of life . Fig. 71. Treating a cut When the pressure of the thumb is not sufficient to compress the blood vessels and stop the flow, a tourniquet may be used, made by tying a handkerchief about the limb and twisting it tight by means of a stick slipped under the handkerchief. Of course, the tourniquet or the bandage applied in this way is to be considered an emergency measure, and steps should be taken to have the wound attended to by a physician one of the dangers of the athletic enthusiasm is that a student will overdevelop his heart. But occasional severe strain upon the heart is not the same as training it for hard work, and a person with a weak heart should not be engaged in work that strains this organ severely. 221. Cuts and wounds. Small wounds will usually stop bleeding in a short time because of the clotting of the blood (p. 181). In view of our modern knowledge about the wide
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