Twenty-seven boys and twenty-seven girls of patrician descent whose parents were both living (_patrimi et matrimi_) were enlisted on June 3, to sing the hymn composed expressly by Horace. "Carmen composuit Q. Horatius Flaccus," so the report says (line 149). The first stanzas of the beautiful canticle were sung when the procession was marching from the Temple of Apollo to that of Jupiter Capitolinus, the middle portion on the Capitol, and the last on the way back to the Palatine. The accompaniments were played by the orchestra and the trumpeters of the official choir (_tibicines et fidicines qui sacris publicis præsto sunt_). The wealth of magnificence and beauty which the Romans beheld on the morning of June 3, 17 B. C., we can see as in a dream, but it baffles description. Imagine the group of fifty-four young patricians clad in snow-white tunics, crowned with flowers, and waving branches of laurel, led by Horace down the Vicus Apollinis (the street which led from the Summa Sacra Via to the house of Augustus on the Palatine), and the Sacra Via, singing the praises of the immortal gods:-- "Quibus septem placuere colles!" During those days and nights Augustus gave evidence of a truly remarkable strength of mind and body, never missing a ceremony, and himself performing the sacrifices. Agrippa showed less power of endurance than his friend and master. He appeared only in the daytime, helping the emperor in addressing supplications to the gods, and in immolating the victims. ARA PACIS AUGUSTAE. Among the honors voted to Augustus by the Senate in the year 13 B. C., on the occasion of his triumphal return from the campaigns of Germany and Gaul, was the erection of a votive altar in the Curia itself. Augustus refused it, but consented that an altar should be raised in the Campus Martius and dedicated to Peace. Judging from the fragments which have come down to us, this _ara_ was one of the most exquisite artistic productions of the golden age of Augustus. It stood in the centre of a triple square enclosure, on the west side of the Via Flaminia, the site of the present Palazzo Fiano. Twice its remains have been brought to light; once in 1554, when they were drawn by Giovanni Colonna,[47] and again in 1859, when the present duke of Fiano was rebuilding the southern wing of the palace on the Via in Lucina. Of the panels and basreliefs found in 1554, some were removed to the Villa Medici and inserted in the front of the casino, on the garden side; others were transferred to Florence; those of 1859 have been placed in the vestibule of the Palazzo Fiano. They are well worth a visit. [Illustration: The family of Augustus. Relief from the Ara Pacis, in the Gallery of the Uffizi, Florence.]