The nearest approach to statuary which we meet with among the Persian remains are the figures of colossal bulls, set to guard portals, or porticos, which are not indeed sculptures in the round, but are specimens of exceedingly high relief, and which, being carved in front as well as along the side, do not fall very far short of statues. Of such figures, we find two varieties--one representing the real animal, the other a monster with the body and legs of a bull, the head of a man, and the wings of an eagle. There is considerable merit in both representations. They are free from the defect of flatness, or want of breadth in comparison with the length, which characterizes the similar figures of Assyrian artists; and they are altogether grand, massive, and imposing. The general proportions of the bulls are good, the limbs are accurately drawn, the muscular development is well portrayed, and the pose of the figure is majestic. Even the monstrous forms of human-headed bulls have a certain air of quiet dignity, which is not without its effect on the beholder; and, although implying no great artistic merit, since they are little more than reproductions of Assyrian models, indicate an appreciation of some of the best qualities of Assyrian art--the combination of repose with strength, of great size with the most careful finish, and of strangeness with the absence of any approach to grotesqueness or absurdity. The other Persian reliefs may be divided under four heads: (1) Mythological representations of a man--the king apparently--engaged in combat with a lion, a bull, or a monster; (2) Processions of guards, courtiers, attendants, or tribute-bearers; (3) Representations of the monarch walking, seated upon his throne, or employed in the act of worship; and (4) Representations of lions and bulls, either singly or engaged in combat.