From Greek and Roman Mythology & Heroic Legend, by Professor H. Steuding, Translated from the German and Edited by Lionel D. Barnett. The Temple Primers, London: J. M. Dent; 1901; p. 12.
[12]Greek and Roman Mythology & Heroic Legend
GREEK MYTHOLOGY
Greek Religion from the Beginning of the Homeric Age
Harpies. § 21. Another kind of ghosts further developed in the same way are the Harpies (harpyiai, ‘Robbers’), Aello (‘Stormfoot’), and Okypete (‘Swift-flier’), death-goddesses who are at work in the storm-blast ravishing away souls. They are represented with wings and the form of horses, later also as winged women or as creatures with a woman’s head and breast and the body of a bird, shapes which were meant to express their swiftness. On the ancient relief of Xanthos they carry away the souls of their victims pressed like children to their bosoms.
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Greek Religion from the Beginning of the Homeric Age :
Asklepios.