Passage 1.37.4
διαβᾶσι δὲ τὸν Κηφισὸν βωμός ἐστιν ἀρχαῖος Μειλιχίου Διός· ἐπὶ τούτῳ Θησεὺς ὑπὸ τῶν ἀπογόνων τῶν Φυτάλου καθαρσίων ἔτυχε, λῃστὰς καὶ ἄλλους ἀποκτείνας καὶ Σίνιν τὰ πρὸς Πιτθέως συγγενῆ. τάφος δὲ ἔστι μὲν αὐτόθι Θεοδέκτου τοῦ Φασηλίτου, ἔστι δὲ Μνησιθέου· τοῦτον λέγουσιν ἰατρόν τε ἀγαθὸν γενέσθαι καὶ ἀναθεῖναι ἀγάλματα, ἐν οἷς καὶ ὁ Ἴακχος πεποίηται. ᾠκοδόμηται δὲ κατὰ τὴν ὁδὸν ναὸς οὐ μέγας καλούμενος Κυαμίτου· σαφὲς δὲ οὐδὲν ἔχω λέγειν εἴτε πρῶτος κυάμους ἔσπειρεν οὗτος εἴτε τινὰ ἐπεφήμισαν ἥρωα, ὅτι τῶν κυάμων ἀνενεγκεῖν οὐκ ἔστι σφίσιν ἐς Δήμητρα τὴν εὕρεσιν. ὅστις δὲ ἤδη τελετὴν Ἐλευσῖνι εἶδεν ἢ τὰ καλούμενα Ὀρφικὰ ἐπελέξατο, οἶδεν ὃ λέγω.
After crossing the Cephisus there is an ancient altar of Zeus Meilichios. It was upon this altar that Theseus received purification from the descendants of Phytalos, having slain robbers and other men, including Sinis, who was related by blood to Pittheus. Nearby are tombs: one of Theodektes of Phaselis, and another of Mnesitheus. They say Mnesitheus was a skilled physician who dedicated statues, among which is represented Iacchos. Beside the road stands a small temple called that of Kyamites. I cannot clearly say whether this figure was the first who sowed beans or merely a hero given this epithet, since they are unable to attribute to Demeter the invention of beans. Whoever has seen the rites at Eleusis or read the so-called Orphic texts will understand what I am saying.