The ceiling is worked in stucco, in low relief, with scattered figures and ornaments of little flying genii, delicately relieved on medallions, with foliage carved round them. The ground is painted, sometimes red and sometimes blue. The room is lighted by a window two feet six inches high and three feet wide, in the bronze frame of which were found set four very beautiful panes of glass fastened by small nuts and screws, very ingeniously contrived, with a view to remove the glass at pleasure. In this room was found a brazier, seven feet long and two feet six inches broad, made entirely of bronze, with the exception of an iron lining. The two front legs are winged sphinxes, terminating in lions' paws, the two other legs are plain, being intended to stand against the wall. The bottom is formed with bronze bars, on which are laid bricks supporting pumice-stones for the reception of charcoal. There is a sort of false battlement worked on the rim, and in the middle a cow is to be seen in high relief. Three bronze benches also were found, alike in form and pattern. They are one foot four inches high, one foot in width, and about six feet long, supported by four legs, terminating in the cloven hoofs of a cow, and ornamented at the upper ends with the heads of the same animal. Upon the seat is inscribed, M. NIGIDIUS, VACCULA. P.S. Varro, in his book upon rural affairs, tells us that many of the surnames of the Roman families had their origin in pastoral life, and especially are derived from the animals to whose breeding they paid most attention. As, for instance, the Porcii took their name from their occupation as swine-herds; the Ovini from their care of sheep; the Caprilli, of goats; the Equarii, of horses; the Tauri, of bulls, etc. We may conclude, therefore, that the family of this Marcus Vaccula were originally cow-keepers, and that the figures of cows so plentifully impressed on all the articles which he presented to the baths are a sort of _canting arms_, to borrow an expression from heraldry, as in Rome the family Toria caused a bull to be stamped on their money. A doorway led from the tepidarium into the caldarium, or vapor-bath. It had on one side the laconicum, containing the vase called labrum. On the opposite side of the room was the hot bath called lavacrum. Here it is necessary to refer to the words of Vitruvius as explanatory of the structure of the apartments (cap. xi. lib. v.): "Here should be placed the vaulted sweating-room, twice the length of its width, which should have at each extremity, on one end the _laconicum_, made as described above, on the other end the hot bath." This apartment is exactly as described, twice the length of its width, exclusively of the laconicum at one end and the hot bath at the other. The pavement and walls of the whole were hollowed to admit the heat.