They accordingly constructed engines on the walls to throw heavy darts and stones over the water to the men upon the pier. They sent secretly to the tribes that inhabited the valleys and ravines among the mountains, to attack the parties at work there, and they landed forces from the city at some distance from the pier, and then marched along the shore, and attempted to drive away the men that were engaged in carrying stones from the ruins. They also fitted up and manned some galleys of large size, and brought them up near to the pier itself, and attacked the men who were at work upon it with stones, darts, arrows, and missiles of every description.