V'é chi a Todini oppone La morte di Leone; Roma però sostiene Ch 'egli à operato bene. And again-- Alle dieci di Febraro, E successo un caso raro, A un Leon creduto forte Diede un asino la morte. _16th._ To-day I made an excursion to Tivoli, with Hofrath F---- of Darmstadt, whom I had met a day or two before by mere chance, in the street, and who kindly greeted me as an old friend. We followed the same road which I had passed over with Sir Humphry when we visited the Solfatara; and about two miles beyond the little bridge over the canal, we again crossed the Teverone, by the Ponte Lucano, near which is the sepulchre of the Plautian family, built of travertine, in the shape of a round tower, and on the front of it are still the remains of some columns and Latin inscriptions. Three or four miles beyond this monument lies Tivoli, where we arrived about ten o'clock in the morning, having quitted Rome at an early hour, and we occupied the whole morning in viewing the ruins and cascades. Our first visit was to the Temple of Vesta, generally called the Temple of the Sybil, a beautiful and elegant ruin, situated immediately above the Falls of the Aniene. It is of a circular form, and appears to have been surrounded by eighteen columns, ten of which are still remaining. These columns are of travertine, and of the Corinthian order. Close to this temple stands another small one, which is said to have been dedicated to the Tiburtine Sybil, of a square form, with four Ionic columns in front. Descending near this temple, a very good path led us down to the Grotto of Neptune, into which the waters of the Aniene precipitate themselves with impetuosity, forming on two sides beautiful cascades, which fall into the same pool, and run from it through a very narrow and highly picturesque valley, round the hill upon which Tivoli is situated. Leaving the grotto and town, we walked along the side of the mountains which look towards the _campagna_ and Rome; and during our walk, our guide showed us the remains and situations of some of the most celebrated villas; the country-house of the poet Catullus, and that of Horace and Quintillius Varo. Before we ascended to the villa of Mæcenas, we passed by the _Cascatelle_, beautiful and highly picturesque falls, which seem to rise out of the town of Tivoli, and leap down the hill into the valley in many a varied bound. The villa of Mæcenas is now used as an iron manufactory; many of the rooms and corridors are still distinct, and the roof is still perfect. The view from hence towards Rome is magnificent, embracing the whole _campagna_, with the different towns and villages in it, and is bounded by the cupola of St. Peter's. The Villa d'Este is of modern architecture, and