Charles D. Morris, Commentary on Thucydides Book 1

καὶ ἐν τούτῳ: and then, not of time, but emphasizing the importance of the occasion, which decides the action of the Corinthians; the circumstances are expressed in τῆς Ποτειδαίας . . . οὐσῶν, where the pf. and pres. partics. are quite proper.

περὶ τῷ χωρίῳ: Thuc. uses περί, for, with dat. nearly always after verbs of fear. The gen., ‘about,’ occurs iii.102.11; viii.93.17.

μισθῷ πείσαντες: here for μισθοφόρους (c. 35. 16). This phrase is common: c. 31. 5; ii.96.11; iv.80.22; vii.57.52: in the last passage the pass. is used, but the act. is more common.

ἑξακοσίους...τετρακοσίους : the whole number (τοὺς πάντας, in all, c. 100. 6; viii.21.4) to which the Corinthians, ἐθελονταί, and the allies, μισθῷ πεισθέντες, contribute.

Ἀδειμάντου: see Hdt. viii. 59, 61. Schol., τοῦτον ἴσμεν ἐν τοῖς Μηδικοῖς πρὸς τὸν Θεμιστοκλέα στασιάζοντα.

ἦν γὰρ...ἐπιτήδειος : gives the reason only of ἐστρατήγει Ἀριστεύς, the clause κατὰ φιλίαν τε ... ξυνέσποντο being inserted parenthetically, and τε introducing this subordinate matter, as in c. 12. 15; 93. 24; ii.10.3; 19. 2.

ἀεί ποτε: see on c. 13. 16; 47. 9.

τεσσαρακοστῇ...ὕστερον : dat. of time, on the fortieth day after. Cf. viii.24.5. Unusual, but not less correct logically than τεσσαράκοντα ἡμέραις, which would, however, be the dat. of measure or difference after a comparative.—ἐπὶ Θρᾴκης: see on c. 56. 11. Here the expression is construed with a verb.—ᾗ...ἀπέστη : so the best Mss. for ἤ. The complete expression would be ἢ ᾗ, which v. H. reads here, as in Plat. Crit. 44 a in all Mss., and in Symp. 173 a in most Mss. But Buttmann, commenting on Dem. XXI. 119 (τῇ προτεραίᾳ ὅτε ταῦτ᾽ ἔλεγεν), shows that the comparative particle ἤ might in such carelessly condensed expressions be easily omitted, but hardly the rel. pron. In Antiphon, VI. 37, the Mss. have εὐθὺς τῇ ὑστεραίᾳ ᾗ ὁ παῖς ἐθάπτετο.