The Roman History · Amm. 22.12.8

And while this was going on, as if it were a time of profound peace, Julian, being curious in all such branches of learning, entered on a new path of divination. He proposed to reopen the prophetic springs of the fountain of Castalia, which Hadrian was said to have blocked up with a huge mass of stones, fearing lest, as he himself had attained the sovereignty through obedience to the predictions of these waters, others might learn a similar lesson; and Julian immediately ordered the bodies which had been buried around it to be removed with the same ceremonies as those with which the Athenians had purified the island of Delos.

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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