Note 522 — Chapter IV
Reading edition
The rock whence came the stones thrown by Deucalion and Pyrrha (the origin of the human race) also gave birth to Agdistis mugitibus editis multis, according to Arnobius, Adversus Nationes, v, 5. Mithra's birth from a rock (Roscher, Lexikon) is perhaps a bit of late poetical or philosophical imagery.