The classic mythology presented numerous points in which it readily coalesced with that of the Germans, Danes, and Northmen of a later period. They recognized the power of Erictho, Canidia, and other sorceresses, whose spell could perplex the course of the elements, intercept the influence of the sun, and prevent his beneficial operation upon the fruits of the earth, call down the moon from her appointed sphere, and disturb the original and destined course of Nature by their words and charms and the power of the evil spirits whom they invoked. They were also professionally implicated in all such mystic and secret rites and ceremonies as were used to conciliate the favour of the infernal powers, whose dispositions were supposed as dark and wayward as their realms were gloomy and dismal. Such hags were frequent agents in the violation of unburied bodies, and it was believed, by the vulgar at least, that it was dangerous to leave corpses unguarded lest they should be mangled by the witches, who took from them the most choice ingredients composing their charms. Above all, it must not be forgotten that these frightful sorceresses possessed the power of transforming themselves and others into animals, which are used in their degree of quadrupeds, or in whatever other laborious occupation belongs to the transformed state. The poets of the heathens, with authors of fiction, such as Lucian and Apuleius, ascribe all these powers to the witches of the pagan world, combining them with the art of poisoning, and of making magical philtres to seduce the affections of the young and beautiful; and such were the characteristics which, in greater or less extent, the people of the Middle Ages ascribed to the witches of their day. But in thus adopting the superstitions of the ancients, the conquerors of the Roman Empire combined them with similar articles of belief which they had brought with them from their original settlements in the North, where the existence of hags of the same character formed a great feature in their Sagas and their Chronicles. It requires but a slight acquaintance with these compositions to enable the reader to recognize in the Galdrakinna of the Scalds the _Stryga_ or witch-woman of more classical climates. In the northern ideas of witches there was no irreligion concerned with their lore. On the contrary, the possession of magical knowledge was an especial attribute of Odin himself; and to intrude themselves upon a deity, and compel him to instruct them in what they desired to know, was accounted not an act of impiety, but of gallantry and high courage, among those sons of the sword and the spear. Their matrons possessed a high reputation for magic, for prophetic powers, for creating illusions; and, if not capable of transformations of the human body, they were at least able to impose such fascination on the sight of their enemies as to conceal for a period the objects of which they were in search.