Inspection of the tongue is a common occupation of the hypochondriac, who is generally more familiar than his medical attendant with the anatomy of this organ. Insistent desire regarding the temperature is common not only among hypochondriacs, but among others. I do not allude to the internal temperature (though I have been surprised to learn how many people carry a clinical thermometer and use it on themselves from time to time); I refer to the temperature of the room or of the outside air. The wish to feel a certain degree of warmth is so overpowering in some cases that neither work nor play can be carried on unless the thermometer registers the desired figure. A person with this tendency does not venture to mail a letter without donning hat and overcoat; the mere thought of a cold bath causes him to shudder. Golf has cured many a victim of this obsession. It takes only a few games to teach the most delicately constructed that he can remain for hours in his shirt-sleeves on quite a cold day, and that the cold shower (preferably preceded by a warm one) invigorates instead of depresses him. Further experiment will convince him that he can wear thin underwear and low shoes all winter. Such experiences may encourage him to risk a cold plunge in the morning, followed by a brisk rub and a few simple exercises before dressing. Morbid fears in themselves produce physical manifestations which add to the discomfort and alarm of the hypochondriac. I allude to the rush of blood to the head, the chill, the mental confusion, and the palpitation. These symptoms are perfectly harmless, and denote only normal circulatory changes. It is true that one cannot at will materially alter his circulation, but he can do so gradually by habit of thought. To convince ourselves of this fact, we need only remember to what a degree blushing becomes modified by change of mental attitude. Similarly, the person who has practiced mental and physical relaxation will find that the blood no longer rushes to his head upon hearing a criticism or remembering a possible source of worry. The automatic processes of the body are in general performed best when the attention is directed elsewhere. After ordinary care is taken, too minute attention to the digestive apparatus, for example, may retard rather than aid it. Watching the digestion too closely is like pulling up seeds to see if they are growing.