may be an interpretation of an existing composition, and was apparently repeated in variations in later Imperial palaces by Claudius, Nero and at Hadrian's Villa. Of the European painters of the subject, the Flemish Jacob Jordaens depicted Odysseus escaping from the cave of Polyphemus in 1635 (see gallery below) and others chose the dramatic scene of the giant casting boulders at the escaping ship. In Guido Reni's painting of 1639/40 (see above), the furious giant is tugging a boulder from the cliff as Odysseus and his men row out to the ship far below. Polyphemus is portrayed, as it often happens, with two empty eye sockets and his damaged eye located in the middle on his forehead. This convention goes back to Greek statuary and painting, and is reproduced in Johann Heinrich Wilhelm Tischbein's 1802 head and shoulders portrait of the giant (see below). Arnold Böcklin pictures the giant as standing on rocks onshore and swinging one of them back as the men row desperately over a surging wave (see below), while Polyphemus is standing at the top of a cliff in Jean-Léon Gérôme's painting of 1902. He stands poised, having already thrown one stone, which barely misses the ship. The reason for his rage is depicted in J. M. W. Turner's painting, Ulysses Deriding Polyphemus (1829). Here the ship sails forward as the sun breaks free of clouds low on the horizon. The giant himself is an indistinct shape barely distinguished from the woods and smoky atmosphere high above. Possible origins Folktales similar to that of Homer's Polyphemus are a widespread phenomenon throughout the ancient world. In 1857, Wilhelm Grimm collected versions in Serbian, Romanian, Estonian, Finnish, Russian, German, and others; versions in Basque, Lappish, Lithuanian, Gascon, Syriac, and Celtic are also known. More than two hundred different versions have been identified, from around twenty five nations, covering a geographic region extending from Iceland, Ireland, England, Portugal and Africa to Arabia, Turkey, Russia, and Korea. The consensus of current modern scholarship is that these "Polyphemus legends" preserve traditions predating Homer. An example of such a story is one from Georgia, in the Caucasus, which describes several brothers held prisoner by a giant one-eyed shepherd called "One-eye". After all but two of the brothers are roasted on a spit and eaten, the remaining two take the spit, heat it red hot, and stab it into the giant's eye. As One-eye