The primitive culture of the Americas appears to belong to an earlier and fresher stratum than that of the oldest historic civilizations ; it exhibits processes of growth and development that are elsewhere lacking. This is especially true of the mask, for which we find a direct explanation which, while it may not apply to all masks, reveals materials and conditions out of which the thing came into being.
While the use of the mask among the American Indians was widespread, the Eskimo, the tribes of the north-west Pacific coast and the village dwellers of the south-western United States are now our chief sources of information. Idols or images of the gods are inconspicuous in the religious life of the existing Indian who himself personates his deities. He identifies himself with the divinity by painting himself, or by his costume, the essential feature of which among the Indians of the South-west is the mask. Much the same kilts, girdles and other accessories
are worn with different masks. The Eskimos believe that in early days all animated beings had a dual existence, assuming at will either human or animal form. When an animal wished to become human it raised its forearm or wing and pushed up its muzzle or beak as if it were a mask, the creature becoming instantly manlike in form and features. The manlike form thus appearing is supposed to represent the thinking part of the creature and at death becomes its shade. The masks of the Pacific coast with double faces illustrate this belief, the muzzle or beak of the animal fitting over and concealing the face of a man and being so constructed as to swing open and symbolize the transformation at a certain place in the ceremony.
The primal and dominant type of mask employed by the Indians of the south-western United States is a cylinder, closed at the top, that fits over the head and rests on the shoulders. It suggests and is comparable to the top of a carved post. An other mask, a section of the foregoing, covers only the face. These are worn alike by the Zuni, the Hopi, the Keres, Tewa and other Pueblo tribes. To-day they are made of leather, of old saddles, or of raw hide, and are humanized and adorned by a variety of adjuncts. The eyes are represented by round or square incisions or by two buckskin balls filled with deer hair and tied with deer sinew which passes through holes. The nose is commonly of buckskin rolled up and tied in place with sinew, or of a corn-cob or a corn-cob dart or a miniature dart directed at a ring which forms the mouth. The mouth is a little hole with a ring of buckskin or is indicated by a braided corn husk simu lating teeth. Not infrequently it has a projecting wooden cylinder for a bill, or the stem of a gourd cut with teeth for a snout. Ears consist of a hemispheric disc of wood perforated for earrings and attached with sinew or buckskin strings, or flowers of the colour-vision producing datura made of wool or cotton yarn of different colours, or datura flower buds of wood, on one or both sides. On others painted discs representing datura flowers with segments of different colours are substituted. Horns are at tached to some masks. Others are surmounted by wooden rain bows or rectangular tablets. A feather plume is frequently affixed at the top. Wooden arrows, lightning sticks and cloud terraces are among the other adjuncts.