Christian monuments. That in Fig. 18, representing scenes from the life of our Saviour, exhibits figures carved in the Roman manner, and wearing the Roman costume, but degraded in style,--evidently the work of the Low Empire. Christ occupies the central compartment, and four wide arches contain figure subjects,--those on the extreme right and left representing the Magdalene and Pilate, while the two central compartments contain saints bearing palm branches. [Illustration: FIG. 18. FROM ARLES MUSEUM.] The arcade on this sarcophagus is supported on pillars with composite caps and bases, and shafts ornamented with flutings and twists, similar in character to the shafts of the early mediæval cloisters. The archivolt is a veritable architrave with leaf enrichment carried round the arch, and filled in with a scallop shell. It thus forms a distinct and instructive example of the manner in which the late Romans dispensed with the straight architrave, and adopted the arch springing directly from the caps of the columns, as will be more fully explained further on. It will then be shewn how this monument illustrates the transition from the leading features of the Greek trabeated style to those of fully developed Roman Architecture, and also the mode in which Roman art was continued into Christian times. Most of the early Christian sarcophagi are carved with Biblical subjects symbolical of the new birth, the great Sacrifice, the Resurrection, the Last Judgment, &c., such as the creation of Adam and Eve, Moses striking the rock or raising the serpent, Jonah and the whale, Daniel and the lions, the parables and miracles of our Lord, &c. These form as interesting a series of early Christian sculptures, combined with late Roman features, as is anywhere to be found. On the east side of the town are the remains of some parts of the Roman walls, built in their usual massive manner. These consist of portions of the gate of the town, by which the Aurelian way entered, flanked by ruined round towers. [Illustration: FIG. 19.]