The southern front of the group, facing the Avenue of Palms, has the aspect of a single palace, opened in the center by the noble Roman arch of the Tower of Jewels, and indented by the Court of Flowers and the Court of Palms. (See p. 18, 88.) Seen across the South Gardens, the whole facade rising from the trees along the wall, is wondrously beautiful. The wall is seventy feet high, topped with a red-tiled roof. The pale green domes over the centers of the palaces are Byzantine, a style much used in the mosques of Islam. The gables are each crowned with a figure of Victory, sometimes called an "acroterium," from the architectural name of the tablet on which it stands. The towers on either side of the entrances to the courts are Italian. The little towers buttressing the domes on the corners of the palaces at the extreme right and left of the front, and from there repeated around the east, west and north walls, are Moorish, with characteristic latticed windows. The Palace of Varied Industries, on the extreme right, is made entirely Spanish in its southern front by its beautiful central portal, modeled after the sixteenth-century entrance to the Hospice of Santa Cruz at Toledo. (pp. 18, 37.) Except for the sculpture, in which the Spanish saints have been replaced by figures of industry, the portal is a copy of the original. All the figures are the work of Ralph Stackpole, whose treatment of the subjects, no less than their exalted position in the niches of the saints, has dignified the workman. On each side of the entrance is the "Man with a Pick." The group in the tympanum represents Varied Industries. (p. 138.) The central figure is Agriculture, the basic food-supplying industry. On one side is the Builder, on the other the Common Workman. Beyond them are Commerce holding the figurehead of a ship, and a woman with a spindle, a lamb before her, typifying the textile industries. The figure in the keystone represents the Power of Industry. Under the upper canopy is an old man handing his burden to a younger one, the Old World passing its burdens on to the New World. The infant figures come from the Spanish original. The two lesser portals on the south side of this palace are likewise Spanish. In the grill work of their openings, designed in imitation of metal, as well as in that of the central portal, there is a strong suggestion of the Arabian architecture brought into Spain by the Moors. Indeed, there is something Moorish about the whole work, except that the Mohammedans do not represent living things in art. A passage in the Koran tells devout followers of the prophet that if they should carve or picture a plant or animal they would be called upon at the Judgment to make it real. Sometimes, however, they employed Christian workmen to execute such representations, being quite resigned to let the unbeliever risk damnation.