Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
Then, after a single day’s truce, on the third day, with the soldiers more carefully protected and amid loud outcries everywhere, they attempted from every quarter to scale the walls; but although the defenders were hidden within behind hair-cloth stretched before them, in order that the enemy might not see them, yet whenever necessity required they would fearlessly thrust out their right arms and attack the besiegers with stones and weapons.
But when the wicker mantlets[*](By which the besiegers were protected.) went confidently on and were already close to the walls, great jars fell from above along with millstones and pieces of columns, by the excessive weight of which the assailants were overwhelmed; and since their devices for protection were rent asunder with great gaps, they made their escape with the greatest peril.