But the Art of the catacombs, after its first age, was not confined to painting. Many sculptured sarcophagi have been found within the crypts, and in the crypts of the churches connected with the cemeteries. Here was again the adoption of an ancient custom; and in many instances, indeed, the ancient sarcophagi themselves were employed for modern bodies, and the old heathens turned out for the new Christians. Others were obviously the work of heathen artists employed for Christian service; and others exhibit, even more plainly than the later paintings, some of the special doctrines of the Church. The whole character of this sculpture deserves fuller investigation than we can give to it here. The collection of these first Christian works in marble that has recently been made in the Lateran Museum affords opportunity for its careful study,--a study interesting not only in an artistic, but in an historic and doctrinal point of view. The single undoubted Christian statue of early date that has come down to us is that of St. Hippolytus, Bishop of Porto, which was found in 1551, near the Basilica of St. Lawrence. Unfortunately, it was much mutilated, and has been greatly restored; but it is still of uncommon interest, not only from its excellent qualities as a work of Art, but also from the engraving upon its side of a list of the works of the Saint, and of a double paschal cycle. This, too, is now in the Christian Museum at the Lateran. Another branch of early Christian Art, which deserves more attention than it has yet received, is that of the mosaics of the catacombs. Their character is widely different from that of those with which a few centuries afterwards the popes splendidly adorned their favorite churches. But we must leave mosaics, gems, lamps, and all the lesser articles of ornament and of common household use that have been found in the graves, and which bring one often into strange familiarity with the ways and near sympathy with the feelings of those who occupied the now empty cells. Most of these trifles seem to have been buried with the dead as the memorials of a love that longed to reach beyond death with the expressions of its constancy and its grief. Among them have been found the toys of little children,-- their jointed ivory dolls, their rattles, their little rings, and bells,--full, even now, of the sweet sounds of long-ago household joys, and of the tender recollections of household sorrows. In looking at them, one is reminded of the constant recurrence of the figure of the Good Shepherd bearing his lamb, painted upon the walls of these ancient chapels and crypts.