Passage 9.28.1
ὁ δὲ Ἑλικὼν ὀρῶν τῶν ἐν τῇ Ἑλλάδι ἐν τοῖς μάλιστά ἐστιν εὔγεως καὶ δένδρων ἡμέρων ἀνάπλεως· καὶ οἱ τῆς ἀνδράχνου θάμνοι παρέχονται τῶν πανταχοῦ καρπὸν αἰξὶν ἥδιστον. λέγουσι δὲ οἱ περὶ τὸν Ἑλικῶνα οἰκοῦντες καὶ ἁπάσας ἐν τῷ ὄρει τὰς πόας καὶ τὰς ῥίζας ἥκιστα ἐπὶ ἀνθρώπου θανάτῳ φύεσθαι. καὶ δὴ καὶ τοῖς ὄφεσι τὸν ἰὸν ποιοῦσιν ἐνταῦθα ἀσθενέστερον αἱ νομαί, ὥστε καὶ διαφεύγουσι τὰ πολλὰ οἱ δηχθέντες, ἢν ἀνδρὶ Λίβυι γένους τοῦ Ψύλλων ἢ καὶ ἄλλως προσφόροις ἐπιτύχωσι τοῖς φαρμάκοις.
Mount Helicon is among the mountains of Greece most esteemed for excellence of its soil and the abundance of cultivated trees. Its shrubs of strawberry-tree especially yield fruit sweeter for goats than those of any other region. The inhabitants around Helicon also report that none of the grasses and roots growing on this mountain are likely to cause human death. Moreover, even the pasture grounds here render the venom of serpents more feeble, so that those who have been bitten usually survive if they receive treatment from a Libyan of the Psylli race or other suitable remedies.