17. Upper garden upon the level of the court.
18. Entrance to the baths, which, though originally rare in private houses, had become so common, long before the destruction of Pompeii, that few wealthy persons were without them. The word _balneum_ was peculiarly applied to domestic, _thermæ_ to public baths. This specimen, which fortunately was almost perfect, small as it is, suffices to give an idea of the arrangement of private baths among the Romans. 19. Portico upon two sides of a small triangular court. There is as much skill in the disposition, as taste in the decoration, of this court, which presents a symmetrical plan, notwithstanding the irregular form of the space allotted to it. Its situation is conformable to the advice of Vitruvius; and as it could not front the west, it has been placed to the south. The columns of the portico are octagonal. At the extremity of the gallery, on the left of the entrance, there is a small furnace where was prepared some warm beverage or restorative for the use of the bathers, who were accustomed to take wine or cordials before they went away. Here a gridiron and two frying pans were found, still blackened with smoke. In the centre of the base, or third side of the court, is placed a bath, 20, about six feet square, lined with stucco, the edge of which is faced with marble. It was covered with a roof, the mark of which is still visible on the walls, supported by two pillars placed on the projecting angles. The holes in the walls to admit the three principal beams are so contrived that each side is lined with a single brick. Under this covering the whole wall was painted to represent water, with fish and other aquatic animals swimming about. The water was blue, and rather deep in color: the fish were represented in the most vivid and varied tints. Some years ago this painting recovered, on being wetted, the original freshness and brilliancy of its coloring; but exposure to the weather has done its work, and now scarce a trace of it remains. In the middle of it there is a circular broken space to which a mask was formerly attached, through which a stream gushed into the basin below. Two or three steps led down to this _baptisterium_, where the cold bath was taken in the open air. This court and portico were paved in mosaic. 21. Apodyterium. 22. Frigidarium. 23. Tepidarium. These two rooms, in neither of which was there a bathing vessel, show that frequently rooms thus named were not intended for bathing, but simply to preserve two intermediate gradations of temperature, between the burning heat of the caldarium or laconicum and the open air. In fact, no trace of any contrivance for the introduction or reception of water has been found in No. 22. It was simply a cold chamber, cella frigidaria. Nor was the little chamber, 23, large enough to receive conveniently a bathing vessel; but seats of wood were found there for the convenience of those who had quitted the bath, and who came there to undergo the discipline of the strigil, and a minute process of purification and anointing. This room is not above twelve feet by six: the bath, therefore, could not have been calculated for the reception of more than one, or, at most, of two persons at once. Here the great question relative to the use of glass windows by the ancients was finally settled. This apartment was lighted by a window closed by a movable frame of wood, which, though converted into charcoal, still held, when it was found, four panes of glass about six inches square. A more elaborate and curious glass window was found at a later period in the public baths. 24. Caldarium. It might, however, be employed at pleasure as a tepid or cold bath, when the weather was too cold for bathing in the open air. The suspensura caldariorum, as Vitruvius calls the hollow walls and floors raised upon pillars, are in remarkably good preservation. By means of these the whole apartment was entirely enveloped in flame, and might be easily raised to a most stifling temperature.