A subject similar to that just described is represented in another series of bas-reliefs, with even fuller details. The bull is placed in the same manner on the sledge, which is also moved by cables and levers. It is accompanied by workmen with saws, hatchets, pick-axes, shovels, ropes, and props, and by carts carrying cables and beams. Upon it are three officers directing the operations, one holding the trumpet in his hands, and in front walk four other overseers. Above the sledge and the workmen are rows of trees, and a river on which are circular boats resembling in shape the "kufas," now used on the lower part of the Tigris, and probably, like them, built of reeds and ozier twigs, covered with square pieces of hide. They are heavily laden with beams and implements required for moving the bulls. On a fallen slab, forming part of the same general series, is the king standing in a richly decorated chariot, the pole of which, curved upwards at the end, and ornamented with the head of a horse, is raised by eunuchs. From the peculiar form of this chariot and the absence of a yoke, it would seem to have been intended purposely for such occasions as that represented in the bas-relief, and to have been a kind of moveable throne drawn by men and not by horses. Behind the monarch, who holds a kind of flower, or ornament in the shape of the fruit of the pine, in one hand, stand two eunuchs, one raising a parasol to shade him from the sun, the other cooling him with a fan. He appears to have been superintending the transport of one of the colossal sculptures, and his chariot is preceded and followed by his body-guard armed with maces. The next series of bas-reliefs represents the building of the artificial platforms on which the palaces were erected, and the Assyrians moving to their summit the colossal bulls. The king is again seen in his chariot drawn by eunuchs, whilst an attendant raises the royal parasol above his head. He overlooks the operations from that part of the mound to which the sledge is being dragged, and before him stands his body-guard, a long line of alternate spearmen and archers, resting their arms and shields upon the ground. At the bottom of the slab is represented a river, on the banks of which are seen men raising water by a simple machine, still generally used for irrigation in the East, as well as in Southern Europe, and called in Egypt a _shadoof_. It consists of a long pole, balanced on a shaft of masonry, and turning on a pivot; to one end is attached a stone, and to the other a bucket, which, after being lowered into the water and filled, is easily raised by the help of the opposite weight. Its contents are then emptied into a conduit communicating with the various watercourses running through the fields. In the neighbourhood of Mosul this mode of irrigation is now rarely used, the larger skins raised by oxen affording a better supply, and giving, it is considered, less trouble to the cultivator.[38]