firm ground, but the other extremity wanted, and probably had, supports of a similar nature, which are now destroyed. Wherever we turn ourselves in Palestrina, we find fragments of antiquity. The lower terrace was perhaps an addition of some of the emperors. A great deal was no doubt the work of Sylla, and some other parts were probably of an earlier date. We find here a considerable quantity of the _opus incertum_; and besides the capitals and bases, which resemble those of the temple of Vesta at Tivoli, there is a peculiar Ionic entablature, with very narrow dentils. Above the rest is a large semicircular wall, which now makes part of the foundation of the palace of the prince Barberini; and in the middle of this there is a small circular edifice, which M. Huyot considers as also built upon the ancient foundations, but I could not obtain any direct evidence for this opinion. If it were really the case, it must have been the principal object; the cell or adytum of the temple of Fortune itself; a very small centre to so large a mass of building. I know of no other example either of ancient or modern times where so great a number of edifices, and occupying so great an extent, were combined into one regular and symmetrical plan; and our admiration is still increased when we consider that it was necessary, not only to erect the building, but absolutely to build a place for it to stand on. I doubt after all, if it ever were a handsome fabric, and certainly at present, it cannot boast much attraction as an object merely of beauty. A fragment below it, called the Temple of the Sun, is a picturesque object, and might be united with an admirable landscape, the spectator looking towards Monte Albano; but like a great many other ruins, it stands in a vineyard, where the vines prevent any good view from within its circuit; and standing on the outside, the high enclosure hides a great part of the building. I forgot to mention a curious mosaic in the palace of prince Barberini, supposed to represent the animals of Egypt. The name of each is written in Greek characters underneath the figure. There are also representations of buildings, but if they are not given more faithfully than the animals, there is not much to be learned from them in architecture. After a hasty look over the different fragments in this temple, I went to some other Cyclopean walls, running obliquely up the hill. The antiquaries say that these were prior to the erection of the ancient Præneste, which was built at the foot of the hill below the present town. Præneste, according to Virgil, was just founded when Æneas landed in Italy. About three fourths of a mile from the town is another temple of the Sun, or at least, what my Cicerone called by that name, but I suspect he made a mistake, and did not report correctly the tradition of the place. After this we took a walk to what is called the Palace of Constantine. The ruins consist of numerous vaults and