87. The march of Julian from Ctesiphon is circumstantially,
but not clearly, described by Ammianus (xxiv. 7, 8),
Libanius (Orat. Parent. c 134, p. 357), and Zosimus (1. iii.
[c. 26] p. 183). The two last seem ignorant that their
conqueror was retreating; and Libanius absurdly confines him
to the banks of the Tigris.