The masks are painted along conventional lines; the favorite colors for the inua masks are red (Karekteoak),[11] black (Auktoak), green (Cungokyoak), white (Katektoak), and blue (Taukrektoak), in the order named. These colors[12] may hold a sacred or symbolic significance. The inua masks are decorated with some regard to the natural colors of the human face, but in the masks of the tunghat the imagination of the artist runs riot. The same is true of the comic masks, which are rendered as grotesque and horrible as possible. A mask with distorted features, a pale green complexion, surrounded by a bristling mass of hair, amuses them greatly. The Eskimo also caricature their neighbors, the Dene, in this same manner, representing them by masks with very large noses and sullen features. [11] These are the northern names. In the southern or Yukon dialect black is Tunguli; white Katughuli; red, Kauiguli; green, Tcununguli. The endings and pronunciation of similar Eskimo words are somewhat different in Arctic Alaska and on the Yukon River; sufficiently so as to produce two distinct dialects. For this reason I have given the forms from both sections. [12] Red is obtained from red ochre; white from white clay; black from soot or ashes; green from oxide of copper. THE DANCE FESTIVALS The Dance Festivals of the Alaskan Eskimo are held during that cold, stormy period of the winter when the work of the year is over and hunting is temporarily at an end. At this season the people gather in the kasgi to celebrate the local rites, and at certain intervals invite neighboring tribes to join in the great inter-tribal festivals. This season of mirth and song is termed "Tcauyavik" the drum dance season, from "Tcauyak" meaning drum. It lasts from November to March, and is a continuous succession of feasts and dances, which makes glad the heart of the Eskimo and serves to lighten the natural depression caused by day after day of interminable wind and darkness. A brisk exchange of presents at the local festivals promotes good feeling, and an interchange of commodities between the tribes at the great feasts stimulates trade and results in each being supplied with the necessities of life. For instance, northern tribes visiting the south bring presents of reindeer skins or mukluk to eke out the scanty supply of the south, while the latter in return give their visitors loads of dried salmon which the northerners feed to their dogs.