[Footnote 139: Πόλεμον ἀκήρυκτον.] Properly _war in which there is no use for heralds_, but in which all is violent and desperate; so that ἀκήρυκτος will be equivalent, according to Hesychius, to ἀδιάλλακτος, _implacable_, _irreconcilable_. See Erasm. Adag. iii. 3. 84. _Sturz Lex_. Others rather think it a deadly war, not commenced by sending heralds, and not to be terminated by sending them. _Kühner_. See Herod. v. 81.] [Footnote 140: Cyrus's Greek auxiliaries for the expedition had consisted only of infantry; all his cavalry was either Asiatic or Thracian. The Thracian horse had deserted, and the Asiatic cavalry had gone over to Tissaphernes soon after the battle.] [Footnote 141: Τούτῳ μὲν.] As τίνες πέπανται immediately precedes, the singular τούτῳ rather startles the reader; but there are not wanting examples of similar irregularity.] [Footnote 142: Ἀτέλειαν.] Exemption, for instance, from keeping guard and keeping watch. _Krüger_.] [Footnote 143: Τῷ σφενδονᾶν ἐντεταγμένω ἐθέλοντι.] "To him willing to be a slinger, being enrolled in the company (of slingers)." This is the reading of Schneider, and Dindorf, and Bornemann. Kühner and some others prefer ἐν τῷ τεταγμένῳ, "in the place appointed him."] [Footnote 144: Σπολάδες.] This form of the word is preferred by Dindorf, Schneider, Bornemann, and Kühner prefer στολάδες, both in this passage and in iv. 1. 18. Both forms seem to have been in use, and to have had the same signification; but σπολάς to have been the more common. See Pollux, 1. 135. Hesychius has σπολὰς, χιτωνίσκος βαθὺς, σκύτινος, ὁ βύρσινος θώραξ. See Pollux, 7. 70; 10. 143. Suidas, Phavorinus, and Photius give similar interpretations.] CHAPTER IV Mithridates again pursues the Greeks, but is repulsed. They reach the Tigris, encamp at Mespila, and are attacked by Tissaphernes with a numerous force. They repel him, and alter their order of march. Traversing a mountainous part of the country, they are harassed by the enemy, till, on getting possession of a height, they are enabled to reach the plain beyond it in safety.