"The use of water in the treatment of diseases dates back to remote antiquity. Savages resort to the surf and sweat-bath, and Hindoos and Mohammedans bathe because their religion commands them to do so. References to the bath may be found scattered throughout the literature of Greece, and in Rome the magnificent buildings and lavish expenditure devoted to the public bath show it in the highest stage of perfection it has ever attained." "It is only within a few years past that the domestic bath has been accepted as a necessity. No home in England is complete without a bath-room, and no Englishman deems himself well unless he bathes daily. The speaker said that a thermometer, whose use should be understood, should be permanently attached to every bath-tub. "_Physiological Action of the Bath._--In considering the physiological action of the bath, it is first to be accepted that water of a temperature below that of the body abstracts heat from the skin, which abstraction continues indefinitely, only for a time checked by the renewed activity of the heat centers. In a bath the temperature of which is from 92 degrees to 95 degrees, the body may remain indefinitely without any loss or gain of temperature, but after the bath a cooling takes place, owing to increased perspirations. If the water is between 77 degrees and 86 degrees, there is, after the first shock, a positive rise in the temperature of the body. Sixty-five degrees, and lower, may be borne for a long time." "Nature adapts herself to the cold bath by a rapid stimulation of heat production. All the muscles, nerves, and organs of the body are brought into heightened activity, and thus it is that to the healthy individual the cold bath is invigorating. But nature has her limits, and the bath must be discontinued while this tonic effect is felt, for the heat centers become fatigued and give rise to a chill which may continue for days afterward.