The tepidarium (VII) and caldarium (VIII) were heated by means of hollow floors and walls. The former is much the smaller, as we should have expected from its use as an intermediate room, in which the bathers would ordinarily not tarry so long as in the caldarium. The large bath basin at the east end (indicated on the plan) is unusual; it was seemingly a later addition, and was probably made to accommodate those who in the winter shrank from using the frigidarium, but wished nevertheless to take a moderately cold bath. Near the bottom of the wall back of this basin, a hole had been made so that underneath a fire could be kindled from the outside (in X), not in order to heat the basin, which could be supplied with warm water by means of a pipe, but to start the circulation of hot air from the furnace; at the top of the wall above were two vents opening from the warm air chamber. There was a place for another draft fire under the women's caldarium. One of the fragments of stucco relief still remaining in the tepidarium presents the figure of a man reading from a roll of manuscript. It suggests the standing complaint of the ancients in regard to the trials of bathers, who could not escape the ever-present poet declaiming his latest production. At one end of the caldarium we find the bath basin, alveus; at the other is the support of the labrum, which has disappeared. In the niche above the latter are two vents for the draft, and above the niche was a round window. This room, as most of the others, was dimly lighted. The little round window of the anteroom is shown in our plate. There were two similar windows in the lunette of the apodyterium, above the roof of the anteroom; they are not seen in our plate, having at one time been entirely covered up by the construction of a wall to support the roof. A similar window was very likely placed at the end of the tepidarium, over the roof of the frigidarium; and perhaps these were supplemented by holes in the crown of the arched ceilings, as in the women's apodyterium. The women's baths are entered from the court through a long anteroom (6); the dressing room is connected also with the two side streets by means of corridors (1, 5). Originally there was no communication between the women's baths and the palaestra.