Eustace describes these _Thermae_ at some length:--"Repassing the Aventine Hill, we came to the baths of Antoninus Caracalla, that occupy part of its declivity, and a considerable portion of the plain between it and Mons Caeliolus and Mons Caelius. The length of the _Thermae_ was 1,840 feet; breadth, 1,476. At each end were two temples, one to Apollo and another to Esculapius, as the tutelary deities of a place sacred to the improvement of the mind, and the health of the body. In the principal building were, in the first place, a grand circular vestibule, with four halls on each side, for cold, tepid, warm, and steam baths;[9] in the centre was an immense square for exercise, when the weather was unfavourable to it in the open air; beyond it a great hall, where _one thousand six hundred seats of marble_ were placed for the convenience of the bathers; at each end of this hall were libraries. The stucco and paintings, though faintly indeed, are yet in many places perceptible. Pillars have been dug up, and some still remain amidst the ruins; while the Farnesian Bull and the famous Hercules, found in one of these halls announce the multiplicity and beauty of the statues which once adorned the Thermae of Caracalla." Before they commenced bathing in the _Thermae_, the Romans anointed themselves with oil, in a room especially appropriated to the purpose; and oil was again applied, with the addition of perfumes, on quitting the bath. In a painting which has been engraved from one of the walls in the baths of Titus, the room is represented filled with a number of vases, and somewhat resembles an apothecary's shop. These vases contained a variety of balsamic and oleaceous compositions for the anointment, which, when ultimately performed, prepared the bathers for the _sphaeristerium_, in which various amusements and exercises were enjoyed. The subsequent operation of scraping the body with the strigil has given way to a mode of freeing the body from perspiration and all extraneous matter, by a sort of bag or glove of camel's hair, which is used in Turkey; while flannel and brushes are substituted in other parts.