On entering the Frigidarium the bather is enveloped in a large cotton sheet or mantle, which covers him from the head to below the feet; he lies or sits down, enclosing each limb in a separate fold of the sheet, and he wipes his face and head with a dry napkin, or with a corner of the sheet. He then remains perfectly tranquil and quiescent, the sheet absorbs any excess of moisture, and the accumulated heat of the body disperses the rest. After fifteen or twenty minutes he exposes an arm to the air; then both arms and the upper part of the trunk of the body; then the lower limbs; bringing every part of the skin in succession into relation with the cool air or cool breeze of the apartment. Of course, where an attendant is attached to the bath, the investiture with the mantle, the wiping of the head and face, the wrapping of the separate limbs, and the packing of the body, are performed by such attendant, or one bather performs the office for another; but where the bather is alone, he finds no difficulty in doing it all for himself. The cooling and drying process, which is the special use of the Frigidarium, is regarded by experts as not the least important part of the curriculum of the bath. It is here that the moisture is dissipated from the skin by the heat of the body, that the bather recovers from any little physical exhaustion that the processes of the Lavatorium may have occasioned, that the skin is brought into contact with the open air, and imbibes its oxygen; that the man becomes sensible of a delicious repose of the nervous system, and an equally agreeable restoration of his powers. If the quiet impassibility of the Roman, or the listlessness of the Turk, is to be imitated in the preceding stages of the bath, it is doubly deserving of imitation here; calm, repose, dignity, thankfulness, should fill the soul of the bather while in the Frigidarium. When his skin is perfectly dry, but still warm, smooth, and satiny to the touch, then, and then only, slowly and leisurely, he should begin to resume his usual clothing. If he dress too soon he will be apt to break out into a perspiration while putting on his clothes, or after quitting the bath; in which case he will be in danger of taking cold, and frustrating the benefits of the bath. SANITARY PURPOSES OF THE BATH. In reference to the sanitary purposes of the bath, I assume that it is Preservative of Health; that it is Preventive of Disease; and that it is also Curative of Disease.