The demands of decency must be borne constantly in mind by the architect of a Turkish bath. If the bather, on leaving the plunge bath, finds himself in the frigidarium, he must ascend the steps under hanging towels. The arrangement that will be found the most convenient--a direct importation from the East--is to suspend a hoop from the ceiling, and from this hang cords attached to towels. The hoop can be swung by an attendant over the end of the bath, and in it the bather can dry himself and be wrapped in towels before proceeding to his couch. Whether the plunge bath be placed in a separate chamber, in the lavatorium, or partly in the frigidarium, its construction will remain essentially the same. If not in shape and size, in other respects it is a small swimming bath. The weight and pressure of the water must be remembered. A good foundation must be prepared for the bath, with a thick layer of concrete passing well under the side walls and covering the whole floor. The side walls should be built of concrete and lined with white glazed bricks. In certain soils, the excavation for the bath may be puddled with advantage, but if properly constructed, this should be unnecessary. The bottom of the bath need not be flat, as the most economical method of constructing a plunge bath is to make its deepest part about two-thirds of its length from the end at which the bather enters. This may be about 4 ft. 6 in. in depth from bottom to water-line. From this point the floor will slope towards either end, gradually towards the entering end, and more rapidly towards the exit. At either end, where the depth of water should be about 3 ft, must be provided steps for ascent and descent. If the bath be not more than 6 ft. wide, these should occupy the whole width, and be of marble or slabs of some cheaper material on brick bearers, or they may be built solid. A coping of marble, stone, or purpose-made bricks must be placed on the side walls; and, if the bath be in the cooling room, this may advantageously be raised several inches to protect from splashing. On the coping may be required metal standards and a neat hand-railing. A water-supply pipe and screw-down tap, an overflow and a waste-pipe will be needed, all of which I have more particularly specified hereinafter.