The Roman History · Amm. 24.2.7

At this point a portion of the river is drawn off in large canals which convey it to the interior districts of Babylonia, for the service of the surrounding country and cities. Another branch of the river known as the Nahamalca, which means "the river of kings," passes by Ctesiphon; at the beginning of this stream there is a lofty tower like a lighthouse, by which our infantry passed on a carefully constructed bridge.

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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