[351] Vol. I. 252. Vol. III. 175. Above, p. 253. [352] "Cyri Instit." 8, 2, 9. [353] Kiepert has convincingly shown how the lacuna in Herodotus (5, 52) is to be filled up ("Monatsberichte der Berliner Akademie," 1857, s. 123). Xenophon gives twelve short marches and about ten parasangs from the foot of the Carduchian mountains to the Greater Zab--_i.e._ about 60 parasangs; from the Zab to the Physcus is 50 parasangs; from the Physcus to the bridge of the Tigris at Sittace is 20 parasangs. The territory which he traversed in this region he considers to be part of Media ("Anabasis," 2, 4 ff.). Hence there can be no doubt that the length of the royal road from the point where it crossed the Tigris to the borders of Susiana was 137 parasangs. If Xenophon passed beyond the point at which the royal road crosses the Tigris, to the north, this is amply compensated by the greater distance from the bridge at Sittace to the Gyndes and the borders of Susiana. At Opis the column of the Greeks came upon the Persians who were marching from Ecbatana to Babylon. So the road from Ecbatana must have joined the great royal road at Physcus, and then it ran past Sittace to Babylon. Alexander also, in order to come from Babylon to Susa, first marched north-east to Sittace, and after crossing the Tigris proceeded south-east to Susa: Diod. 17, 65, 66. [354] Herod. 5, 14; 8, 98; Xenoph. "Cyri Instit." 8, 6, 17. Suidas and Hesychius [Greek: Astandês, Angaros]. Plut. "Artax." 25; "Alex." 18. Xenophon ascribes even this arrangement to Cyrus, but it could only be made effectual by a network of first-rate roads. [355] Herod. 3, 128; Ezra i. 23; vi. 2; Esther iii. 9, 12-15; Arrian, "Anab." 3, 11. [356] In Layard; cf. Brandis, "Münzwesen in Vorderasien," s. 231. [357] Herod. 5, 35, 49-52. 7, 239. [358] Xenoph. "Cyri Instit." 8, 6, 16. [359] Xenoph. "Oecon." 4, 8-12. [360] Herod. 1, 114; Aesch. "Pers." 980; Plut. "Artax." 12. Suidas and Hesych. [Greek: ophthalmos]; Xenoph. "Cyri Instit." 8, 6, 16; 8, 2, 11. [361] Xenoph. "Cyri Instit." 8, 2, 10; Brisson, "De Reg. Pers." 1, 190. [362] Herod. 5, 35, 49-52; 7, 239; Brisson, _loc. cit._ 1, 180. [363] Herod. 3, 129; 4, 166; Plut. "Artax." 23. [364] Above, p. 247, 248. [365] Herod. 4, 84; 7, 194. [366] Xenoph. "Anab." 1, 9; Brisson, "de Reg. Pers." 2, 227 ff. [367] Xenoph. "Anab." 1, 6; Plut. "Artax." 29; Curtius, 3, 2, 16-19; Diod. 17, 30. [368] Plut. "Artax." 14, 16, 17, 19; Xenoph. "Anab." 2, 6. CHAPTER XVIII. THE FINANCE AND ARMY OF DARIUS.