At Otricoli there is a small amphitheatre, 312 ft. by 230, in two storeys, from which the order has entirely disappeared; it is therefore possibly the most modern of its class, but the great flat pilasters that replace the pillars are ungraceful and somewhat clumsy. Perhaps its peculiarities ought rather to be looked on as provincialisms than as genuine specimens of an advanced style. Still there is a pleasing simplicity about it that on a larger scale would enable it to stand comparison with some of its greater rivals.
Besides these, which are the typical examples of the style, there are the “Castrense” at Rome, nearly circular, and possessing all the faults and none of the beauties of the Colosseum; one at Arles, very much ruined; and a great number of provincial ones, not only in Italy and Gaul, but in Germany and Britain. Almost all these were principally if not wholly excavated from the earth, the part above-ground being the mound formed by the excavation. If they ever possessed any external decoration to justify their being treated as architectural objects, it has disappeared, so that in the state at least in which we now find them they do not belong to the ornamental class of works of which we are at present treating.
Baths.
Next in splendour to the amphitheatres of the Romans were their great thermal establishments: in size they were perhaps even more remarkable, and their erection must certainly have been more costly. The amphitheatre, however, has the great advantage in an architectural point of view of being one object, one hall in short, whereas the baths were composed of a great number of smaller parts, not perhaps very successfully grouped together. They were wholly built of brick covered with stucco (except perhaps the pillars), and have, therefore, now so completely lost their architectural features that it is with difficulty that even the most practised architect can restore them to anything like their original appearance.
In speaking of the great Thermæ of Imperial Rome, they must not be confounded with such establishments as that of Pompeii for instance. The latter was very similar to the baths now found in Cairo or Constantinople, and indeed in most Eastern cities. These are mere establishments for the convenience of bathers, consisting generally of one or two small circular or octagonal halls, covered by domes, and one or two others of an oblong shape, covered with vaults or wooden roofs, used as reception-rooms, or places of repose after the bath. These have never any external magnificence beyond an entrance-porch; and although those at Pompeii are decorated internally with taste, and are well worthy of study, their smallness of size and inferiority of design do not admit of their being placed in the same category as those of the capital, which are as characteristic of Rome as her amphitheatres, and are such as could only exist in a capital where the bulk of the people were able to live on the spoils of the conquered world rather than by the honest gains of their own industry.
Agrippa is said to have built baths immediately behind the Pantheon, and Palladio and others have attempted restorations of them, assuming that building to have been the entrance-hall. Nothing, however, can be more unlikely than that, if he had first built the rotunda as a hall of his baths, he should afterwards have added the portico, and converted it from its secular use into a temple dedicated to all the gods.
As before remarked, the two parts are certainly not of the same age. If Agrippa built the rotunda as a part of his baths, the portico was added a century and a half or two centuries afterwards, and it was then converted into a temple. If Agrippa built the portico, he added it to a building belonging to Republican times, which may always have been dedicated to sacred purposes. As the evidence at present stands, I am rather inclined to believe the first hypothesis most correctly represents the facts of the case.[[183]]
Nero’s baths, too, are a mere heap of shapeless ruins, and those of Vespasian, Domitian, and Trajan in like manner are too much ruined for their form, or even their dimensions, to be ascertained with anything like correctness. Those of Titus are more perfect, but the very discrepancies that exist between the different systems upon which their restoration has been attempted show that enough does not remain to enable the task to be accomplished in a satisfactory manner. They owe their interest more to the beautiful fresco paintings that adorn their vaults than to their architectural character. These paintings are invaluable, as being the most extensive and perfect relics of the painted decoration of the most flourishing period of the Empire, and give a higher idea of Roman art than other indications would lead us to expect.
The baths of Constantine are also nearly wholly destroyed, so that out of the great Thermæ two only, those of Diocletian and of Caracalla, now remain sufficiently perfect to enable a restoration to be made of them with anything like certainty.
