On the left of the arch of Janus is a narrow alley, spanned by low brick arches, which leads first to the beautiful clear spring of the Aqua Argentina, which, according to some authorities, is the place where Castor and Pollux watered their horses after the battle of the Lake Regillus.
"Then on rode those strange horsemen,
With slow and lordly pace;
And none who saw their bearing
Durst ask their name or race.
On rode they to the Forum,
While laurel boughs and flowers
From house-tops and from windows,
Fell on their crests in showers.
"When they drew nigh to Vesta,
They vaulted down amain,
And washed their horses in the well
That springs by Vesta's fane.
And straight again they mounted
And rode to Vesta's door;
Then, like a blast, away they passed,
And no man saw them more."
Macaulay's Lays.
The alley is closed by an arch of the celebrated Cloaca Maxima, the famous drain formed by Tarquinius Priscus, fifth king of Rome, to dry the marshy land of the Velabrum.
"Infima urbis loca circa Forum, aliasque interjectas collibus convalles, quia ex planis locis haud facile evehebant aquas, cloacis a fastigio in Tiberim ductis siccat."—Livy, lib. i. c. 38.
The Cloaca extended from the Forum to the Tiber, and is still, after 2,400 years, used, during the latter part of its course, for the purpose for which it was originally intended, though Pliny was filled with wonder that, in his time, it had already withstood the earthquakes, inundations, and accidents of seven hundred years. Strabo tells that the tunnel of the Cloaca was of sufficient height to admit a waggon laden with hay, but this probably supposes the water at its lowest. Agrippa, who cleaned out the Cloaca, navigated its whole length in a boat. The mouth of the Cloaca, composed of three concentric courses of blocks of peperino, without cement, is visible on the river a little to the right of the temple of Vesta.
"Ces lieux ont encore un air et comme une odeur de marécage—quand on rôde aux approches de la nuit dans ce coin désert de Rome où fut placée la scène des premiers moments de son premier roi, on y retrouve, à présent mieux qu'au temps de Tite-Live, quelque chose de l'impression que ce lieu devait produire il y a vingt-cinq siècles, à l'époque où, selon la vieille tradition, le berceau de Romulus s'arrêta dans les boues du Vélabre, au pied du Palatin, près de l'antre Lupercal. Il faut s'écarter un peu de cet endroit, qui était au pied du versant occidental du Palatin, et faire quelques pas à droite pour aller chercher les traces du Vélabre là où les rues et les habitations modernes ne les ont pas entièrement effacées. En s'avançant vers la Cloaca Maxima, on rencontre un enfoncement où une vieille église, elle-même au dedans humide et moisie, rappelle par son nom, San Giorgio in Velabro, que le Vélabre a été là. On voit sourdre encore les eaux qui l'alimentaient sous une voûte sombre et froide, tapissée de mousses, de scolopendres et de grandes herbes frissonnant dans la nuit. Alentour, tout a un aspect triste et abandonné, abandonné comme le furent au bord du marais, suivant l'antique récit, les enfants dont on croit presque ouïr dans le crépuscule les vagissements. L'imagination n'a pas de peine à se représenter les arbres et les plantes aquatiques qui croissaient sur le bord de cet enfoncement que voilà, et à travers lesquelles la louve de la légende se glissait à cette heure pour venir boire à cette eau. Ces lieux sont assez peu fréquentés et assez silencieux pour qu'on se les figure comme ils étaient alors, alors qu'il n'y avait ici, comme dit Tite-Live, vrai cette fois, que des solitudes désertes: Vastæ tunc solitudines erant."—Ampère, Hist. Rom. i. 271.
The church with the picturesque campanile near the arch of Janus, is S. Giorgio in Velabro, founded in the fourth century, as the Basilica Sempronia, but repeatedly rebuilt. The architrave above its portico was that where Rienzi affixed his famous inscription, announcing the return to the Good Estate: "In breve tempo gli Romani torneranno al loro antico buono stato." The church is seldom open, except on its festival (Jan. 20), and during its station in Lent. The interior is in the basilica form, the long nave being lined by sixteen columns, of various sizes, and with strangely different capitals, showing that they have been plundered from ancient temples. The carving on some of the capitals is sharp and delicate. There is a rather handsome ancient baldacchino, with an old Greek picture let into its front, over the high altar. Beneath is preserved a fragment of the banner of St. George. Some injured frescoes in the tribune replace mosaics which once existed here, and which were attributed to Giotto. In the centre is the Saviour, between the Virgin and St. Peter; on one side, St. George with the martyr's palm and the warrior's banner—on the other, St. Sebastian, with an arrow. Several fragments of carving and inscriptions are built into the side walls. The pictures are poor and ugly which relate to the saint of the church, St. George (the patron of England and Germany), the knight of Cappadocia, who delivered the Princess Cleodolinda from the dragon.
"Among good specimens of thirteenth century architecture is the portico of S. Giorgio, with Ionic columns and horizontal architrave, on which is a gothic inscription, in quaint Leonine verse, informing us that the Cardinal (or Prior) Stephen, added this detail (probably the campanile also), to the ancient church—about the middle of the thirteenth century, as is supposed, though no date is given here; and in the midst of an age so alien to classic influences, a work in which classic feeling thus predominates, is remarkable."—Heman's Sacred Art.
Partly hidden by the portico of this church, is the beautiful miniature Arch of Septimius Severus, erected to the emperor, his wife Julia Pia, and his sons Caracalla and Geta, by the silversmiths (argentarii) who had their shops in the Forum Boarium on this very spot ("cujus loci qui invehent"). The part of the dedication relating to Geta (as in the larger arch of Septimius) was obliterated after his murder, and the words Fortissimo felicissimoque principi engraved in its place. The architecture and sculpture, part of which represents a sacrifice by the imperial family, prove the decadence of art at this period.
Proceeding in a direct line from the Arch of Janus, we reach the Church of Sta. Maria in Cosmedin, on the site of a Temple of Ceres, dedicated by the consul Spurius Cassius, B.C. 493, and afterwards re-dedicated to Ceres and Proserpine, probably by Augustus, who had been initiated into the Eleusinian mysteries in Greece. The church was built in the basilica form, in 782, by Adrian I., when the name Cosmedin, from the Greek κοσμος, is supposed to have been given, from the ornaments with which he adorned it It was intended for the use of the Greek exiles expelled from the East by the iconoclasts under Constantine Copronimus, and derived the epithet of Sta. Maria in Scuola Greca, from a "Schola" attached to it for their benefit. Another relic of the Greek colony which existed here is to be found in the name of the adjoining street, Via della Greca. In the middle ages the whole bank of the river near this was called Ripa Greca.
The interior of this church is of great interest. The nave is divided from the aisles by twelve ancient marble columns, of which two have especially curious antique capitals, and are evidently remains of the temple which once existed here. The choir is raised, as at S. Clemente. The pavement is of splendid Opus Alexandrinum (1120); the ambones are perfect; there is a curious crypt; the altar covers an ancient bason of red granite, and is shaded by a gothic canopy, supported by four Egyptian granite pillars; behind it is a fine episcopal throne, with lions, said to have been used by St. Augustine, an ancient Greek picture of the Virgin, and a graceful tabernacle of marble inlaid with mosaic, by Deodato Cosmati. In the sacristy is a very curious mosaic, one of the few relics preserved from the old St. Peter's, A.D. 705. (There is another in S. Marco at Florence.) Crescimbeni, the founder and historian of the Arcadian Academy (d. 1728), is buried in this church, of which he was a canon. On St. Valentine's Day the skull of St. Valentine, crowned with roses, is exhibited here.
In the portico is the strange and huge mask of stone, which