Procopius, Persic. l. i. c. 20, l. ii. c. 25;
Gothic. l. iv. c. 17. Menander in Excerpt. Legat. p. 107. Of
the Parthian or Persian empire, Isidore of Charax (in Stathmis
Parthicis, p. 7, 8, in Hudson, Geograph. Minor. tom. ii.) has
marked the roads, and Ammianus Marcellinus (l. xxiii. c. 6, p.
400) has enumerated the provinces.