Light was admitted to the dressing room through a window in the lunette at the south end, closed by a pane of glass half an inch thick, set in a bronze frame that turned on two pivots. On either side of the window are huge Tritons in stucco relief, with vases on their shoulders, surrounded by dolphins; underneath is a mask of Oceanus, and in the same wall is a niche for a lamp, similar to that seen in Fig. 92, blackened by the soot. The frigidarium is well preserved. In all its arrangements it is almost an exact counterpart of the one in the Stabian Baths, but the scheme of decoration, suggestive of a garden, is less realistically carried out, the ground being yellow; and the round window at the apex of the domed ceiling has a rectangular extension toward the south in order to admit as much sunlight as possible. The tepidarium, as will be seen from our illustration (Fig. 92), is in the condition of the tepidariums of the Stabian Baths before the improved arrangements for heating were introduced. There were no warm air chambers in the walls or the floor. At one end we see the remains of the large bronze brazier and benches (the iron grating is modern) presented by Vaccula, to which reference has already been made (p. 197). The feet of the benches are modelled to represent hoofs, each with a cow's head above. [Illustration: Fig. 93.--Longitudinal section of the men's caldarium.] There are niches in the walls, as formerly in the tepidariums of the Stabian Baths, but several of them for some reason have been walled up. Wild-visaged, muscular Atlantes stand out in bold projection on the front of the partitions between the niches, sustaining a cornice upon their uplifted hands. The window, seen in the illustration above the lamp niche, was closed, as that in the dressing room, by a pane of glass in a bronze frame. The decoration of the ceiling, unfortunately only in part preserved, is well designed. Along the lower edge are arabesques, interwoven in a scroll pattern, in white stucco on a white background. Above these are panels of different sizes, in which raised white ornaments and figures appear on a white, blue, or violet ground; among the motives are Cupid leaning on his bow, Apollo riding on a griffin, Ganymede with the eagle, and Cupids on sea horses. The caldarium is well preserved; only a part of the vaulted ceiling has been destroyed. The hollow space for hot air in the floor and walls is indicated in our section (Fig. 93). Here we see at the right, the bath basin, lined with white marble, with its sloping back affording a comfortable support for the bathers; at the other end is the apsidal niche (_schola_) with the labrum. The direction of Vitruvius, that the labrum should be placed under a window in such a way that the shadows of those standing around should not fall on it, is here literally observed. There were three other small windows at the same end of the room, and a niche for a lamp.