On the food required by the heavenly bodies cf. Chrysippus, fr. 658-61, Arnim. Scipionis, ii. These magic letters are still used in the Roman ritual for the consecration of churches. Also Ag. 365, where ἀστρῶν βέλος goes together and μήτε πρὸ καιροῦ μήθ' ὕπερ. Quaest. iii. 29, 1. Esse divinationem si di sint et providentia. De. iii. 11, 28; especially De Divinatione, ii. 14, 34; 60, 124; 69, 142.