Plato, Laws 756b

χειροτονείτω δὲ τὸ ἱππικὸν αὐτοὺς ἐναντίον ὁρώντων τῶν πεζῶν, δύο δὲ οἷς ἂν πλείστη χειροτονία γίγνηται, τούτους ἡγεμόνας εἶναι πάντων τῶν ἱππευόντων. τὰς δὲ ἀμφισβητήσεις τῶν χειροτονιῶν μέχρι δυοῖν εἶναι· τὸ δὲ τρίτον ἐὰν ἀμφισβητῇ τις, διαψηφίζεσθαι τούτους οἷσπερ τῆς χειροτονίας μέτρον ἑκάστοις ἕκαστον ἦν.βουλὴν δὲ εἶναι μὲν τριάκοντα δωδεκάδας—ἑξήκοντα δὲ καὶ τριακόσιοι γίγνοιντο ἂν πρέποντες ταῖς διανομαῖς—μέρη

in full sight of the infantry, and the two who secure most votes shall be captains of all the cavalrymen. No more than two challenges of votes shall be allowed: if anyone makes a third challenge, it shall be decided by those who had charge of the count on the occasion in question. The Boule (or Council) shall consist of thirty dozen—as the number 360 is well-adapted for the sub-divisions: