Zuñi has been built at a point having no special advantages for defense; convenience to large areas of tillable soil has apparently led to the selection of the site. This has subjected it in part to the same influences that had at an earlier date produced the carefully walled fortress pueblos of the valleys, where the defensive efficiency was due to well planned and constructed buildings. The result is that Zuñi, while not comparable in symmetry to many of the ancient examples, displays a remarkably compact arrangement of dwellings in the portions of the pueblos first occupied, designated on the plan (Pl. LXXVI) as houses 1 and 4. Owing to this restriction of lateral expansion this portion of the pueblo has been carried to a great height. Pl. LXXVIII gives a general view of these higher terraces of the village from the southeast. A height of five distinct terraces from the ground is attained on the south side of this cluster. The same point, however, owing to the irregularity of the site, is only three terraces above the ground on the north side. The summit of the knoll upon which the older portion of Zuñi has been built is so uneven, and the houses themselves vary so much in dimensions, that the greatest disparity prevails in the height of terraces. A three-terrace portion of a cluster may have but two terraces immediately alongside, and throughout the more closely built portions of the village the exposed height of terraces varies from 1 foot to 8 or 10 feet. Pl. LXXIX illustrates this feature. The growth of the village has apparently been far beyond the original expectation of the builders, and the crowded additions seem to have been joined to the clusters wherever the demand for more space was most urgent, without following any definite plan in their arrangement. In such of the ancient pueblo ruins as afford evidence of having passed through a similar experience, the crowding of additional cells seems to have been made to conform to some extent to a predetermined plan. At Kin-tiel we have seen how such additions to the number of habitable rooms could readily be made within the open court without affecting the symmetry and defensive efficiency of the pueblo; but here the nucleus of the large clusters was small and compact, so that enlargement has taken place only by the addition of rooms on the outside, both on the ground and on upper terraces. The highest point of Zuñi, now showing five terraces, is said to have had a height of seven terraces as late as the middle of the present century, but at the time of the survey of the village no traces were seen of such additional stories. The top of the present fifth terrace, however, is more than 50 feet long, and affords sufficient space for the addition of a sixth and seventh story.