αὐτῇ, sc. “ἐν τῇ γῇ”, locative dat. (411). ἐξ ἀμφοῖν χεροῖν, perh. laying them with each hand alternately, beginning and ending with the right, or lucky, hand. The olive-branches symbolise the fruits of the earth and of the womb, for the increase of which the Eumenides were esp. prayed, since they could blight it:
.“καρπόν τε γαίας καὶ βοτῶν ἐπίρρυτον
ἀστοῖσιν εὐθενοῦντα μὴ κάμνειν χρόνῳ,
καὶ τῶν βροτείων σπερμάτων σωτηρίαν
”