The Sagas contain many stories which, while written in glorification of the 'giant' race, relate the destruction of their chiefs by the magical powers of the dwarfs. I must limit myself to a few notes on the Ynglinga Saga. 'In Swithiod,' we are told, 'are many great domains, and many wonderful races of men, and many kinds of languages. There are giants, and there are dwarfs, and there are also blue men. There are wild beasts, and dreadfully large dragons.' We learn that in Asaland was a great chief, Odin, who went out to conquer Vanaland. The Vanalanders are declared to have magic arts,--such as are ascribed to Finns and Lapps to this day by the more ignorant of their neighbours. But that the people of Asaland learned their magic charms. 'Odin was the cleverest of them all, and from him all the others learned their magic arts.' 'Odin could make his enemies in battle blind, or deaf, or terror-struck, and their weapons so blunt that they could no more cut than a willow twig; on the other hand, his men rushed forward without armour, were as mad as dogs or wolves, bit their shields, and were as strong as bears or wild bulls, and killed people at a blow, and neither fire nor iron told upon them. These were called Berserkers.' (From ber, bear, and serkr, sark or coat; the word being probably, as Maurer says, a survival of an earlier belief in the transformation of men into bears.) But the successors of Odin did not preserve his occult power. Svegdir, for instance, saw a large stone and a dwarf at the door entering in it. The dwarf called him to come in and he should see Odin. 'Swedger ran into the stone, which instantly closed behind him, and Swedger never came back.' The witchcraft of the Finn people is said to have led Vanlandi (Svegdir's son) to his death by Mara (night-mare). Vanlandi's son too, Visbur, fell a victim to sorcery. Such legends as these, and many others which may be found in Sturleson's Heimskringla, have influenced our popular stories whose interest turns on the skill with which some little Jack or Thumbling overcomes his adversary by superior cunning.