=Circulation.= It is not the heart only that pumps the blood through the body. The tiny muscles of the smallest blood-vessels, by their elasticity are of the greatest importance in maintaining an even flow, and this is especially influenced by fear and depression. Blushing, pallor, cold hands and feet, are circulatory disturbances based largely on emotions. Better than a hot-water bottle or electric pads are courage and optimism. A patient of mine laughingly tells of an incident which she says happened a number of years ago, but which I have forgotten. She says that she asked me one night as she carried her hot-water bottle to bed, "Doctor, what makes cold feet?" and that I lightly answered "Cowardice!" Whereupon she threw away her beloved water-bag and has never needed it since. There is a disturbance of the circulation which results in very marked swelling and redness of the affected part. This is known as angio-neurotic edema, or nervous swelling. I do not have to go farther than my own person for an example of this phenomenon. When I was a young woman I taught school and went home every day for luncheon. One day at luncheon, some one of the family criticized me severely. I went back to school very angry. Before I entered the school-room, the principal handed me some books which she had ordered for me. They were not at all the books I wanted, and that upset me still more. As I went into the schoolroom, I found that my face was swollen until my eyes were almost shut; it was a bright red and covered with purplish blotches. My fingers were swollen so that I could not bend the joints in the slightest degree. It was a day or two before the disturbance disappeared, and the whole of it was the result of anger. We hear much to-day about high blood pressure. They say that a man is as old as his arteries, and now it is known that the health of the arteries depends largely on blood pressure. Since this is a matter that can be definitely measured at any minute, we have an easy way of noting the remarkable effect of shifting emotions. Sadler tells of an ex-convict with a blood pressure of 190 millimeters. It seems that he was worrying over possible rearrest. On being reassured on this point, his blood pressure began to drop within a few minutes, falling 20 mm. in three hours, and 35 mm. by the following day.