In each instance they appear to typify the influence which the supernatural beings to whom they belonged were supposed to exercise over the elements. It has been thought strange that such stress should be laid on the employment of certain toilet-articles, to the use of which the heroes of folk-tales do not appear to have been greatly addicted. But it is evident that like produces like in the transformation in question. In the oldest form of the story, the Sanskrit, a handful of earth turns into a mountain, a cup of water into a river. Now, metaphorically speaking, a brush may be taken as a miniature wood; the common use of the term brushwood is a proof of the general acceptance of the metaphor. A comb does not at first sight appear to resemble a mountain, but its indented outline may have struck the fancy of many primitive peoples as being a likeness to a serrated mountain range. Thence comes it that in German _Kamm_ means not only a comb but also (like the Spanish _Sierra_) a mountain ridge or crest.[171] In one of the numerous stories[172] about the Baba Yaga, four heroes are wandering about the world together; when they come to a dense forest in which a small izba, or hut, is twirling round on "a fowl's leg." Ivan, the youngest of the party, utters the magical formula "Izbushka, Izbushka! stand with back to the forest and front towards us," and "the hut faces towards them, its doors and windows open of their own accord." The heroes enter and find it empty. One of the party then remains indoors, while the rest go out to the chase. The hero who is left alone prepares a meal, and then, "after washing his head, sits down by the window to comb his hair." Suddenly a stone is lifted, and from under it appears a Baba Yaga, driving in her mortar, with a dog yelping at her heels. She enters the hut and, after some short parley, seizes her pestle, and begins beating the hero with it until he falls prostrate. Then she cuts a strip out of his back, eats up the whole of the viands he has prepared for his companions, and disappears. After a time the beaten hero recovers his senses, "ties up his head with a handkerchief," and sits groaning until his comrades return. Then he makes some excuse for not having got any supper ready for them, but says nothing about what has really happened to him.