(M293) “The dance is accompanied by a song which celebrates in boastful words the power of the gods and the mighty deeds represented in the performance. At the main part of the performance all present join in the song, for it is generally known to everybody and is repeated in recitative again and again. It seems that new songs and new performances are constantly springing up in one or other of the villages through the agency of some intelligent young man, hitherto without a song of his own, who treats in a poetical fashion some legend which has been handed down orally from their forefathers. For every man who takes part in the performances and festivals must make his _début_ with a song composed by himself. In this way new songs and dances are constantly originating, the material for them being, of course, always taken from the tribal deities of the particular singer and poet.”(856) (M294) Similar masquerades are in vogue among the neighbours of these Indians, the Esquimaux of Bering Strait, and from the following account it will appear that the performances are based on similar ideas and beliefs. “Shamans make masks representing grotesque faces of supernatural beings which they claim to have seen. These may be _yu-ă_, which are the spirits of the elements, of places, and of inanimate things in general; the _tunghät_, or wandering genii, or the shades of people and animals. The first-named are seen in lonely places, on the plains and mountains or at sea, and more rarely about the villages, by the clairvoyant vision of the shamans. They are usually invisible to common eyes, but sometimes render themselves visible to the people for various purposes. “Many of them, especially among the _tunghät_, are of evil character, bringing sickness and misfortune upon people from mere wantonness or for some fancied injury. The Eskimo believe that everything, animate or inanimate, is possessed of a shade, having semihuman form and features, enjoying more or less freedom of motion; the shamans give form to their ideas of them in masks, as well as of others which they claim inhabit the moon and the sky-land. In their daily life, if the people witness some strange occurrence, are curiously affected, or have a remarkable adventure, during which they seem to be influenced or aided in a supernatural manner, the shamans interpret the meaning and describe the appearance of the being that exerted its power.