THE MARCIA, TEPULA and JULIA passing under one of the arches of the CLAUDIA and ANIO NOVUS, now under the TOR FISCALE. A medieval tower built upon the celebrated crossing of the aqueducts, where seven aqueducts crossed each other at different levels. The Anio Vetus passes under it just underground, and the AQUA FELICE by the side of it. The _specus_ of the Aqua Marcia, built as usual of squared stone, is seen upon the arch that carried it; the others are concealed by a modern wall, but can be traced passing under the stone arch of the Claudian. The other view in the upper part of the plate shews another crossing, at one of the angles made to break the force of the water. The Marcian and the Claudian arcades running parallel to each other at a short distance only, the angle of this goes across the intervening space, and then changes sides for a time. The road which here runs between the two arcades passes under the arches at both ends of this junction, near the Porta Furba, which is seen in the distance. The character of the brickwork of the arch in the foreground indicates the time of Trajan, with later repairs, which were made at all periods in this arcade. PLATE XIV. [Illustration: AQUEDUCTS MARCIA AT PORTA TIBURTINA CLAUDIA AND ANIO NOVUS AT ANGLE OF THE SESSORIUM] The upper view represents the stone _specus_ of the Aqua Marcia at the PORTA TIBURTINA, now of S. Lorenzo, just within the gate, and in the wall on the southern side, with an opening by the side of it, through which a man can now walk into the _specus_ and along it. To the right of this, still in the wall, is a Castellum of the Aqua Felice, which is here, as at the Porta Maggiore, above the Marcia, Tepula and Julia, and below the Claudia and Anio Novus. In the lower view is the Claudia and Anio Novus, at the north-east angle of the gardens of the Sessorian Palace (now of S. Croce in Gerusalemme). One of the stone piers of the Aqua Claudia is seen just within the projection of the tower at the angle, which is an addition of a later period. Within this portion of the City wall is a great Castellum Aquæ, extending from the corner to the tower, through which the aqueducts entered Rome. The interior of the tower is a piscina, which is shewn in another plate. PLATE XV. AQUEDUCTS AT THE PORTA MAGGIORE. THE MARCIA, TEPULA, AND JULIA ENTERING ROME. [Illustration: AQUEDUCTS AT THE PORTA MAGGIORE. MARCIA TEPULA JULIA ENTERING ROME MARCIA ETC. WITHIN THE WALL.]