TIVOLI. ROMAN CASTLE AT.

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From Tivoli, the road to Subiaco is most beautiful andinteresting. About six miles from Tivoli, we came to anancient Roman castle, which I take to be the most perfectpiece of antiquity of the kind, in existence. I have nevermet with any account of it, in any books of travels orantiquities. The main building is quadrangular, each sideof about one hundred yards extent. At the four angles areround towers, of much larger diameter than those of themiddle ages. The windows, both in the side walls, which Iwill call “ curtains ,” and in the towers, are large andadorned with cornices and pediments, in the best style of Ionic architecture. The deep rocky bed of the river Teverone,encompasses a large portion of the castle, from which thereis a massive stone stair, down to the water, and a bridge overit. I will leave to the future traveller in these parts, thetask of further describing this castle, and go on to Subiaco,where we arrived, by short stages, in three days. A straight,broad, and beautiful Macadamized road, upwards of a milein length, leads by a gradual ascent into the town, at theentrance of which is a very handsome gate, or rather trium-phal arch, built in commemoration of some Pope (I forgetwhich) who honoured this town with a sojourn of severalweeks. I have little to say of the town, except that,although most of the streets are narrow', there are somegood squares; the houses are well constructed, and ex-tremely clean, both inside and out. We took up our abodeat the house of a gentleman to whom my uncle had givenme a letter of introduction, and this kind man, appearedto think it the most important duty of his life to devisemeans for our comfort and amusement. He provided anantiquary to perambulate with Greenough. To me he in-troduced a noted sportsman, guided by whom I was pre-sented to numerous companies of hares, partridges andquails. I also enjoyed the society of several men of very