iamque parietibus paene contigui pars lapidibus volutis in pronum collisi, pars confixi stridentibus iaculis, retroque gradientes, averterunt secum omnes alios metu similium a proposito pugnandi detortos.
Translation :
but when they could all but touch the ramparts, some were crushed by stones that were hurled down upon them, others were pierced with whizzing darts; and as the survivors gave way, they carried with them all the rest, whom fear of a like fate turned from their purpose of fighting.
Edition :
Ammianus Marcellinus. With An English Translation. John C. Rolfe, Ph.D., Litt.D. Cambridge. Cambridge, Mass., Harvard University Press; London, William Heinemann, Ltd. 1935-1940.