We will now make a diversion from the road, in order to visit some antiquities which occupy a retired situation to the left, in or near the little valley called the Caffarelli. The first we meet with, just on the brow of the hill, is the little edifice called the Temple of the Tempest. There are some small buildings about Rome, covered with the sort of vault which the French call _dos d’âne_, but I do not know that we have any correspondent English term. The rubble and mortar of which it is composed, seem to have been laid on planks rising in a triangular form, and to sustain themselves when these are removed, entirely by the cement. This little building is one of them. It is said to have been erected A. U. C. 547, (before C. 206.) by P. C. Scipio, in consequence of a vow which he made when overtaken by a storm in returning from Spain; and I have observed two tombs, one of which I have just described to you, the roof of which is constructed on the same principle, in the form of the frustum of a pyramid; both very much dilapidated. I am inclined to attribute to all three a high antiquity, probably as high as that assigned by tradition to the temple of the Tempest; but of this building I must observe, that only a small part can by any possibility boast a claim to the name: additions have been made at different times. The oldest part is formed of rubble-work, of fragments of lava; the later (and these walls are built close against the others) of a rubble-work of tufo, faced with reticulated work, and since that, a dwellinghouse has been erected on the top, which is now in ruins. At a little distance is a building called the Temple of Bacchus, or by Uggeri, and some others, the Temple of Honour and Virtue. Four Corinthian columns of pretty good design and workmanship form the front, but they are spaced wide apart, and surmounted by a miserable architrave. Above this is what may be considered as an enormous frieze, which, as well as the cornice, is of brick. On one side is a fragment of a wall of alternate brick and tufo, not close against the wall of the temple, or parallel to it. The walls of the present building are all brick, at least as to the facing; and in converting it to a church, the spaces between the columns have been filled up with an ill-built wall of brick, and fragments of stone. The original brickwork is neat and good, but the bricks are not cut to a sharp edge, as they are in some other examples. Internally, a range of stones projecting from the walls, forms a series of corbels supporting flat arches of brick: above every alternate stone is a pilaster, and there were probably columns below, so that it was a room adorned with two orders of architecture. Some stucco panels remain on the vault, and along the springing there is a row of trophies in considerable relief. The columns alone belong to a building of good time, but the edifice, in its first state, is probably not much