The Roman History · Amm. 24.6.16

Thinking that this achievement would surely be followed by other similar successes, he prepared a large sacrifice to Mars the Avenger. Ten most beautiful bulls were brought for the purpose, nine of which, even before they reached the altars, lay down of their own accord with mournful countenances, but the tenth broke his bonds and escaped, and was with difficulty brought back at all; and when sacrificed displayed very unfavourable omens; but when he saw this, Julian became very indignant, and exclaimed, calling Jupiter to witness, that henceforth he would offer no sacrifices to Mars. Nor did he recall his vow, being cut off by a speedy death.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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