“When Heracles was about to depart to fetch Cerberus, he wished to be initiated into the Mysteries at Eleusis. However, it was not lawful for foreigners to be initiated; so he was adopted by Pylius. But since he had not been purified of the slaughter of the Centaurs, he was purified by Eumolpus and then initiated.” (Apollodorus, *The Library*, Book II, Chapter 5, Section 12, in the Loeb Classical Library edition, translated by Sir James George Frazer.)
When Erichthonius died, Pandion became king, in whose time Demeter and Dionysus came to Attica. Demeter was welcomed by Celeus at Eleusis, and Dionysus by Icarius. (Apollodorus, The Library, Book III, Chapter 14, Section 7, Loeb Classical Library.
The Hierophant is accustomed to sound the gong when Kore is being invoked by name. (Apollodorus, *Fragment 36*, in *Die Fragmente der griechischen Historiker* (FGrHist), No. 244 F36, edited by Felix Jacoby.)
