But to return to its uses. Hot water used as a stomach bath (see description in the appendix at end of book) is a valuable auxiliary in the preservation and restoration of health. By its means the stomach is cleansed of mucous accumulations and particles of undigested food, thus enabling it to perform its functions satisfactorily. If, as is often the case (more especially with dyspeptics) undigested food remains in the stomach, it ferments, causing what is known as sour stomach, and is productive of many evils. If we keep the ferment out of the stomach by occasionally washing it, and prevent the generation of foul gases in the colon, by regularly flushing it, the bile will effectually prevent any fermentation in the intestines; and with the body in this cleanly condition, sickness is well-nigh impossible. But there are external applications of water, which are equally important for the preservation of health, and first and foremost is the bath. It is a matter of authentic history that the most highly enlightened and prosperous people of the world have been celebrated for their devotion to the bath as a means of securing health and vigor as a means of curing disease, and preventing it, by promoting the activity of the skin. The excavations at Pompeii show the devotion of the people to luxurious bathing. The Romans are famous to this day for the magnificence of their lavatories and the universal use of them by the rich and poor alike. In Russia the bath is general, from the Czar to the poorest serf, and through all Finland, Lapland, Sweden and Norway, no hut is so destitute as not to have its family bath. Equally general is the custom in Turkey, Egypt and Persia, among all classes from the Pasha down to the poorest camel driver. Pity it is that we cannot say as much for the people of our own country. Most people are familiar with the aphorism, "cleanliness is next to godliness," a statement that by implication relegates cleanliness to the second place, but we would transpose this stated sequence of conditions, and assign the premier position to cleanliness; for we contend that purity of soul presupposes purity of body. It is true that we sometimes find a "jewel in an Ethiop's ear," but it is the exception that proves the rule.