After the first shock of the chill is over, the pack is very pleasant and refreshing, and the patient should go to sleep, if possible. The ordinary time for a patient to remain in a pack is about sixty minutes. Thirty or forty minutes is sufficient, if he is in a feeble condition. Never wring the sheet out of warm water, for one of its principal benefits comes from the vigorous reaction induced by its cold temperature. After remaining in the pack from thirty to sixty minutes, allow the patient to stand on his feet, if he is able, and have the whole surface of his body bathed. Rub briskly, and dry with towels, or by throwing over the body a dry sheet and then rubbing him. The dry sheet retains the bodily warmth and is more comfortable, but interferes with the completeness and vigor of the rubbing of the body. Be sure and establish full reaction, which may be known by the warmth of the surface. Frequently, when the patient is released from the pack, and is being bathed, rolls of scales, scurf, and _skin-debris_ come off, thus giving palpable evidence of the utility of the pack in freeing the myriads of pores of the skin of effete matter. It is efficient in fevers, and for breaking up colds, and is a very valuable, remedial agent in most chronic diseases, assisting in removing causes which depress the bodily functions. MOTION IS A REMEDIAL AGENT. The stability of the planetary system depends upon the converted motion of its parts. So in the human system, motion is a fundamental principle which underlies every vital process. Health consists in normal, functional activity. The human system is the arena of various kinds of motions, both of fluids and of solids, and life and health depend upon these physiological movements. There are the movements incident to _respiration_, the expansion and contraction of the walls of the chest, bringing the oxygen of the air into contact with the blood as it circulates through the lungs. Corresponding with the movements of the chest are the _motions of the abdominal walls_, which promote the functions of the organs of the abdominal cavity.