Note 4 — Chapter IX · THE EUPHRATES FRONTIER AND THE PARTHIANS.
William P. (William Purdie) Dickson translation
Τῶν Παρθυαίων συνέδριόν φησιν (Ποσειδώνιος) εἶναι, says Strabo, xi. 9, 3, p. 515, διττόν, τὸ μὲν συγγενῶν, τὸ δὲ σοφῶν καὶ μάγων, ἐξ ὧν ἀμφοῖν τοὺς βασιλεῖς καθίστασθαι (καθίστησιν in MSS.); Justinus, xvii. 3, 1, Mithridates rex Parthorum ... propter crudelitatem a senatu Parthico regno pellitur.