On the tops of the mast pulleys were fixt with ropes: and when the engines were about to be used, men standing on the sterns of the vessels drew the ropes tied to the head of the ladder, while others standing on the prows assisted the raising of the machine and kept it steady with long poles. Having then brought the ships close in shore by using the outer oars of both vessels they tried to let the machine down upon the wall. At the head of the ladder was fixt a wooden stage secured on three sides by wicker-shields, upon which stood four men who fought and struggled with those who tried to prevent the Sambuca from being made to rest on the battlements. But when they have fixt it and so got above the level of the top of the wall, the four men unfasten the wicker-shields from either side of the stage and walk out upon the battlements or towers as the case may be; they are followed by their comrades coming up by the Sambuca, since the ladder's foot is safely secured with ropes and stands upon both the ships. This construction has got the name of "Sambuca," or "Harp," for the natural reason, that when it is raised the combination of the ship and ladder has very much the appearance of such an instrument. With such contrivances and preparations were the Romans intending to assault the towers. But Archimedes had constructed catapults to suit every range; and as the ships sailing up were still at a considerable distance, he so wounded the enemy with stones and darts, from the tighter wound and longer engines as to harass and perplex them to the last degree; and when these began to carry over their heads, he used smaller engines graduated according to the range required from time to time, and by this means caused so much confusion among them as to altogether check their advance and attack; and finally Marcellus was reduced in despair to bringing up his ships under cover of night. But when they had come close to land, and so too near to be hit by the catapults, they found that Archimedes had prepared another contrivance against the soldiers who fought from the decks. He had pierced the wall as high as a man's stature with numerous loop-holes, which, on the outside, were about as big as the palm of the hand. Inside the wall he stationed archers and cross-bows, or scorpions, and by the volleys discharged through these he made the marines useless. By these means he not only baffled the enemy, whether at a distance or close at hand, but also killed the greater number of them. As often, too, as they tried to work their Sambucae, he had engines ready all along the walls, not visible at other times, but which suddenly reared themselves above the wall from the inside, when the moment for their use had come, and stretched their beams far over the battlements, some of them carrying stones weighing as much as ten talents, and others great masses of lead. So whenever the Sambucae were approaching, these