Res Gestae

Others believe that when the air, as often happens, and the waters are polluted by the stench of corpses or the like, the greater part of their healthfulness is spoiled, or at any rate that a sudden change of air causes minor ailments.

Some also assert that when the air is made heavy by grosser exhalations from the earth, it checks the secretions that should be expelled from the body, and is fatal to some; and it is for that reason, as we know on the authority of Homer[*](Iliad, i. 50, οὐρῆας μὲν πρῶτον ἐπῴχετο καὶ κύνας ἀργούς.) as well as from many later experiences, that when such a pestilence has appeared, the other animals besides man, which constantly look downward, are the first to perish.

Now the first kind of plague is called endemic, and causes those who live in places that are too dry to be cut off by frequent fevers. The second is epidemic, which breaks out at certain seasons of the year, dimming the sight of the eyes and causing a dangerous flow of moisture. The third is loemodes,[*](Pestilential.) which is also periodic, but deadly from its winged speed.

After we had been exhausted by this destructive plague and a few had succumbed to the excessive heat and still more from the crowded conditions, at last on the night following the tenth day the thick and gross exhalations were dispelled by light showers, and sound health of body was regained.

But meanwhile the restless Persian was surrounding the city with sheds and mantlets, and mounds began to be raised and towers were constructed; these last were lofty, with ironclad fronts, and on the top of each a ballista was placed, for the purpose of driving the defenders from the ramparts; yet not even for a moment did the skirmishing by the slingers and archers slacken.

There were with us two Magnentian legions, recently brought from Gaul (as I have said)[*](Cf. xviii. 9, 3.) and composed of brave, active men, experienced in battle in the open field, but to the sort of warfare to which we were constrained they were not merely unsuited, but actually a great hindrance; for whereas they were of no help with the artillery or in the construction of fortifications, they would sometimes make reckless sallies and after fighting with the greatest confidence return with diminished numbers, accomplishing just as much as would the pouring of a single handful of water (as the saying is) upon a general conflagration.

Finally, when the gates were very carefully barred, and their officers forbade them to go forth, they gnashed their teeth like wild beasts. But in the days that followed (as I shall show) their efficiency was conspicuous.

In a remote part of the walls on the southern side, which looks down on the river Tigris, there was a tower rising to a lofty height, beneath which yawned rocks so precipitous that one could not look down without

Through these dark passages, left unguarded because of their steepness, led by a deserter in the city who had gone over to the opposite side, seventy Persian bowmen from the king’s bodyguard who excelled in skill and bravery, protected by the silence of the remote spot, suddenly one by one in the middle of the night mounted to the third story of the tower and there concealed themselves; in the morning they displayed a cloak of red hue, which was the signal for beginning battle, and when they saw the city surrounded on all sides with the floods of their forces, emptying their quivers, and throwing them at their feet, with a conflagration of shouts and yells they sent their shafts in all directions with the utmost skill. And presently all the Persian forces in dense array attacked the city with far greater fury than before.