Plate XI. Masonry on the outer wall of the Fire-House, detail.

The well defined outer wall of this cluster to the unaided eye appears to be elliptical, but it will be seen from the plan that the ellipse is somewhat pointed on the side farthest from the cliff. As in other cases of ancient pueblos with curved outlines, the outer wall seems to have been built first, and the inner rooms, while kept as rectangular as possible, were adjusted to this curve. This arrangement often led to a cumulating divergence from radial lines in some of the partitions, which irregularity was taken up in one room, as in this instance, in the space near the gate. The outer wall is uniform in construction so far as preserved. Many irregularities appear, however, in the construction of the inner or partition walls, and some of the rooms show awkward attempts at adjustment to the curve of the outer wall.

The ruin is situated on the very brink of a small canyon, which probably contained a spring at the foot of the cliff close under the ruin site, as the vegetation there has an unusual appearance of freshness, suggesting the close proximity of water to the surface. A steep trail evidently connected the village with the bottom of the canyon. Some of the rocks of the mesa rim were marked by numerous cup-like cavities similar to those seen at Kwaituki, and used in the polishing and forming of stone implements. The type of pueblo here illustrated belonged to a people who relied largely on the architecture for defense, differing in this respect from the spirit of Tusayan architecture generally, where the inaccessible character of the site was the chief dependence.

[ CHUKUBI.]

The ruin called Chukubi by the Tusayan ([Pl. XII]) is situated on the Middle Mesa, about 3 miles northeast of Mashongnavi. It occupies a promontory above the same broad sandstone ledge that forms such a

conspicuous feature in the vicinity of Mashongnavi and Shupaulovi, and which supports the buttes upon which these villages are built.

[full size]
Plate XII. Chukubi, plan.

Little masonry now remains on this site, but here and there a fragment aids in defining the general plan of the pueblo. In general form the village was a large rectangle with a line of buildings across its center, dividing it into two unequal courts, and a projecting wing on the west side. As may be seen from the illustration, one end of the ruin forms a clearly defined rectangular court, composed of buildings mostly two rooms deep. Here, as in other ruins of Tusayan, the arrangement about inclosed courts is in contrast with the parallelism of rows, so noticeable a feature in the occupied villages. At the east end of the ruin are several curious excavations. The soft sandstone has been hollowed out to a depth of about 10 inches, in prolongation of the outlines of adjoining rooms. Such excavation to obtain level floors is quite unusual among the pueblo builders; it was practiced to a very small extent, and only where it could be done with little trouble. Any serious inequality of surface was usually incorporated in the construction, as will be noticed at Walpi ([Pl. XXIII]). Vestiges of masonry indicating detached rooms were seen in each of the courts of the main rectangle.

On the slope of the hill, just above the broad ledge previously described, there is a fine spring, but no trace of a trail connecting it with the pueblo could be found.