Odyssey as an eagle or a swallow perched on the roof of the hall,[1] so Odin flies off as a falcon, and Loki takes the form of a horse or bird. This was only part of that omnipotence which all gods enjoy. But the belief that men, under certain conditions, could also take the shape of animals, is primeval, and the traditions of every race can tell of such transformations. Herodotus had heard how the Neurians, a Slavonic race, passed for wizards amongst the Scythians and the Greeks settled round the Black Sea, because each of them, once in the year, became a wolf for a few days, and then returned to his natural shape. Pliny, Pomponius Mela, and St. Augustin, in his great treatise, De Civitate Dei, tell the same story, and Virgil in his Eclogues has sung the same belief.[2] The Latins called such a man a turnskin,—versipellis, an expression which exactly agrees with the Icelandic expression for the same thing, and which is probably the true original of our turncoat. In Petronius the superstition appears in its full shape, and is worth repeating. At the banquet of Trimalchion, Niceros gives the following account of the turnskins of Nero's time:—
"It happened that my master was gone to Capua to dis pose of some second-hand goods. I took the opportunity and persuaded our guest to walk with me to the fifth milestone. He was a valiant soldier, and a sort of grim water-drinking Pluto. About cock-crow, when the moon was shining as bright as mid-day, we came among the monuments. My
