"The greatest agency in bathing is the stimulation of perspiration, and this depends upon the relative dryness of the surrounding air. Thus, in the dry vapor, or Turkish bath, a person will easily endure 264 degrees, and lose four pounds per hour by perspiration. It is this rapid evaporation from the skin that keeps the body cool. A person may stand for some time in an oven, beside a roasting rib of beef. But in the steam or Russian bath the perspiration is retarded, and a temperature of 120 degrees is hardly bearable. A temperature of 124 degrees may induce a rise in the temperature of the mouth to 104 degrees or even 107 degrees, which is seldom reached in a raging fever. Hence, there is an element of danger in the Russian bath--a danger to sudden death similar to sunstroke. This danger is much more pronounced in the hot-water bath when perspiration ceases altogether, and the supply of heat from the interior to the skin is excessive. The temperature of bathing water should not exceed 104 degrees, and this hot bath should not be endured more than fifteen minutes. Even then it is likely to be followed by depression and weakness." "The circulation being quickened, the cold bath acts as a good blood purifier, washing away the poisons of the body through the channels of the veins. In case of persons troubled with an excess of fat, the bath must be accompanied by massage, banting, and a liberal indulgence in outdoor exercise. In the hot bath there is this same waste of tissue, but no tonic effects, and it is invariably accompanied with loss of energy and vitality. But the action of the bath upon the skin is no less beneficial than upon the interior of the body. It favors the excretory action of the skin, thus purifying it. The millions of dead scales, kept to the skin by the clothing, and the cementing effect of the oil, are washed away, thus relieving the skin, which is the great sewerage system of the body. The work of the lungs and kidneys is thus lessened, and the danger of consumption and Bright's disease, which may be caused by uncleanness, reduced." "_Effects of Sea Bathing._--Sea bathing is much more tonic than all other kinds, and the reason is simple. The salt has a slightly irritating effect on the skin, which is very beneficial. Besides, sea bathing is always accompanied by the best of exercise, by relaxation and freedom from the ordinary cares of life, by a change of climate and scene. The beating of the waves against the body also has an exhilarating effect. The bath in the sea should be taken about three hours after breakfast. There are three stages experienced in the cold bath--first, that of depression; second, the tonic stage; and third, the giving out of the heat-producing powers. This is the same as the one stage of the hot bath, and is always to be avoided as highly injurious.