Cook, Arthur B.: Zeus: a study in ancient religion (Band 2,1): Zeus god of the dark sky (thunder and lightning): Text and notes (Cambridge, 1925)

The significance of Ianus' double face 381

Such cases cannot be sharply separated from others, in which the
double face is set on a pillar or post. Dionysos, himself a Thracian

Fig. 288.

god and a rebirth of Zeus, is sometimes represented on black-
figured lekythoi by a couple of bearded masks hung back to back
on a pillar (fig. 289)1—-an anticipation of the later double herm

an allusion to the counter-blasts, which on the Euripos the Greeks called Tra\ifj.j3opeas
(Theophr. de vent. 27 f.).

1 A. Frickenhaus Lenaenvasen {Winckelmannsfest-Progr. Berlin lxxii) Berlin 1912