were the contrivances with which the Romans intended to attack the towers.
But Archimedes, who had prepared engines constructed to carry to any distance, so damaged the assailants at long range, as they sailed up, with his more powerful mangonels and heavier missiles as to throw them into much difficulty and distress;
and as soon as these engines shot too high he continued using smaller and smaller ones as the range became shorter, and, finally, so thoroughly shook their courage that he put a complete stop to their advance,
until Marcellus was so hard put to it that he was compelled to bring up his ships secretly while it was still night.
But when they were close in shore and too near to be struck by the mangonels Archimedes had hit upon another contrivance for attacking the men who were fighting from the decks.
He had pierced in the wall at short distances a series of loopholes of the height of a man and of about a palm's breadth on the outer side. Stationing archers and "small scorpions" opposite these inside the wall and shooting through them, he disabled the soldiers.
So that he not only made the efforts of the enemy ineffective whether they were at a distance or close at hand, but destroyed the greater number of them.
And when they tried to raise the sambucae he had engines ready all along the wall, which while invisible at other times, reared themselves when required from inside above the wall, their beams projecting far beyond the battlements,
some of them carrying stones weighing as much as ten talents and others large lumps of lead.
Whenever the sambucae approached these beams were swung round on their axis, and by means of a rope running through a pulley dropped the stones on the sambuca,
the consequence being that not only was the engine smashed, but the ship and those on board were in the utmost peril.
Walbank Commentary