The human head or face is somewhat larger than life; it is neatly hollowed out to the nearly uniform depth of one-fourth of an inch, and is slightly polished over most of the surface. Ear lobes are seen at the right and left, and an arched line, possibly intended for a plume, rises from the left side of the head. A crescent-shaped band of red extends across the face, and within this the eyes are indistinctly marked. The mouth is encircled by a dark line and shows six teeth, the spaces between being filled in with red.

Probably the most remarkable members of the series are the three death’s-heads seen near the middle of the line. That they are intended to represent skulls and not the living face or head is clear, and the treatment is decidedly suggestive of that exhibited in similar work of the more cultured southern nations. The eye spaces are large and deep, the cheek bones project, the nose is depressed, and the mouth is a mere node depressed in the center.

All the figures are clearly and deeply engraved, and all save the serpents are in full intaglio, being excavated over the entire space within the outlines and to the depth of from one-eighth to one-fourth of an inch. The serpents are outlined in deep unsteady lines, ranging from one-fourth of an inch to 1 inch in width, and in parts are as much as one-half an inch in depth. The example at the left is rather carefully executed, but the other is very rude. It is proper to notice a wing-like feature which forms a partial arch over the larger serpent. It consists of a broad line of irregular pick marks, which are rather new looking and may not have formed a part of the original design; aside from this, there are few indications of the use of hard or sharp tools, and, although picking or striking must have been resorted to in excavating the figures, the lines and surfaces were evidently finished by rubbing. The friable character of the coarse, soft sandstone makes excavation by rubbing quite easy, and at the same time renders it impossible to produce any considerable degree of polish.

The red color used upon the large face and in delineating the life line and heart of the animal figures is a red ocher or hematite, bits of which, exhibiting the effects of rubbing, were found in the floor deposits of the recess. The exact manner of its application is not known (perhaps the mere rubbing was sufficient), but the color is so fixed that it can not be removed save by the removal of the rock surface.

Regarding the origin and purpose of these sculptures, it seems probable that they are connected with religious practices and myths. If the inscriptions were mnemonic records or notices it is reasonable to suppose that they would have been placed so as to meet the eye of others than those who made or were acquainted with them. But these works are hidden in a mountain cave, and even yet, when the forest is cleared and the surrounding slopes are cultivated, this secluded recess is invisible from almost every side. The spot was evidently the resort of a chosen few, such as a religious society. Such sequestered art gives evidence of a mystic purpose.

Fig. 661.—Baho-li-kong-ya. Arizona.

In this connection it may be noted that a rock drawing in the Canyon Segy, Arizona (Fig. 661), shows Baho li-kong-ya, a god, the genius of fructification, worshipped by living Moki priests. It is a great crested serpent with mammæ, which are the source of the blood of all the animals and of all the waters of the land.

The serpents in the last-mentioned plate and figure may be compared with two Ojibway forms published by Schoolcraft (l).