es, and the length, between the two mountains, which it unites, is 723 feet. The order of the architecture is Tuscan; but its symmetry is inconceivable. By scooping the bases of the pilasters of the second tier of arches, a passage was made for foot travellers; but although the ancients far excelled the moderns in point of beauty and magnificence, they certainly fell short of them in point of convenience. The inhabitants of Avignon have, in this particular, improved the Roman work by a new bridge by apposition, constructed on the same plan with that of the lower tier of arches, of which indeed it seems to be a part, affording a broad and commodious passage over the river, to horses and carriages. The aqueduct for the continuance of which this superb work was raised, conveyed a stream of pure water from the fountain of Eure, near the city of Uzes, and extended nearly six leagues in length. To enable the reader to form a comparative judgement of ancient and modern aqueducts, a delineation of the one at the Peat Forest Canal, stretching from the great Canal which extends from Manchester towards Wakefield, is introduced in the Plate, beneath that of the Pont du Gard. ST. PETER'S OF ROME. [See Plate, No. 62.] THE piazza of this masterpiece of architecture is altogether sublime. The double colonnade on each side, extending in a semi-circular sweep; the stupendous Egyptian obelisk; the two fountains; the portico; and the admirable façade of the church; form such an assemblage of magnificent objects, as cannot fail to impress the mind with awe and admiration. The church appears in the back-ground, and on each side is a row of quadruple arches, resting on two hundred and eighty-four pillars, and eighty-eight pilasters; the arches support one hundred and ninety two statues, twelve feet in height. The two noble fountains throw a mass of water to the height of nine feet, from which it falls in a very picturesque manner, and adds greatly to the beauty of the scene. In the centre is the fine obelisk. At the first entrance into St. Peter's, the effect is not so striking as might be expected: it enlarges itself however, insensibly on all sides, and mends on the eye every moment. The proportions are so accurately observed, that each of |