where the plebeians retired when they made their secession, B.C. 492, and where Menenius Agrippa addressed to them the famous fable of the "Belly and its Members" (Livy, ii. 32; Dionysius, vi. 86), so beautifully illustrated by S. Paul: "As the members of a natural body all tend to the mutual decency, service, and succour of the same body; so we should do one for another, to make up the mystical body of Christ" (see 1 Cor. xii.). "They erected an altar upon the summit of the hill, where they had encamped, which they named the altar of Jupiter Terribilis" (Dionysius, vi. 90). A second secession here took place after the death of Virginia, B.C. 449 (Livy, iii. 52). _Beyond the osteria_ (_inn_), _on the left, is the so-called_ TOMB OF VIRGINIA. The shepherds have handed down this tradition, but we have no historic record of where she was buried. Dionysius (xi. 39) gives this account of her funeral:-- "The relatives of the virgin still increased the disaffection of the citizens by bringing her bier into the forum, by adorning her body with all possible magnificence, and carrying it through the most remarkable and most conspicuous streets of the city: for the matrons and virgins ran out of their houses lamenting her misfortune, and some threw flowers upon the bier, some their girdles or ribbons others their virgin toys, and others even cut off their curls and cast them upon it. And many of the men, either purchasing ornaments in the neighbouring shops, or receiving them by the favour of the owners, contributed to the pomp by presents proper to the occasion: so that the funeral was celebrated through the whole city." "And close around the body gathered a little train Of them that were the nearest and dearest to the slain. They brought a bier, and hung it with many a cypress crown, And gently they uplifted her, and gently laid her down."--MACAULAY. _About three miles from the bridge are the_ ORATORY AND CATACOMB OF S. ALEXANDER, discovered in 1853. S. Alexander suffered under Trajan, A.D. 117. In the fourth century a church was built over the oratory and catacomb. In 1867 Pius IX. laid the foundations of a church to be erected over these remains. _To visit them a permit is necessary from the cardinal vicar, 70 Via della Scrofa._ * * * * * PORTA TIBURTINA. (_Porta S. Lorenzo._) This gate was built by Augustus, B.C. 3, over the line of the Pomœrium, being one of the arches of the Marcian Aqueduct, B.C. 145. The Aquæ Tepula and Julia likewise passed over it. The inscriptions refer to Augustus, and to repairs by Vespasian, Caracalla, and Honorius, who added the picturesque brick towers in 402. _A new road has now been made to the_ CEMETERY, _which is passed by the tramway to Tivoli. Three quarters of a mile on the road is the_ CHURCH OF S. LORENZO,