One of the smaller inclosed courts of Zuñi, illustrated in Pl. LXXXII, is reached by means of two covered passages, bearing some general resemblance to the ancient defensive entrances, but these houses, reached from within the court, have also terraces without. The low passage shown in the figure has gradually been surmounted by rooms, reaching in some cases a height of three terraces above the openings; but the accumulated weight finally proved too much for the beams and sustaining walls--probably never intended by the builders to withstand the severe test afterwards put upon them--and following an unusually protracted period of wet weather, the entire section of rooms above fell to the ground. This occurred since the surveying and photographing. It is rather remarkable that the frail adobe walls withstood so long the unusual strain, or even that they sustained the addition of a top story at all. In the preceding examples the passageway was covered throughout its length by rooms, but cases occur in both Tusayan and Cibola in which only portions of the roof form the floor of superstructures. Pl. CIV shows a passage roofed over beyond the two-story portion of the building for a sufficient distance to form a small terrace, upon which a ladder stands. Pl. XXIII illustrates a similar arrangement on the west side of Walpi. The outer edges of these terraces are covered with coping stones and treated in the same manner as outer walls of lower rooms. In Zuñi an example of this form of passage roof occurs between two of the eastern house rows, where the rooms have not been subjected to the close crowding characteristic of the western clusters of the pueblo. DOORS. In Zuñi many rooms of the ground story, which in early times must have been used largely for storage, have been converted into well-lighted, habitable apartments by the addition of external doors. In Tusayan this modification has not taken place to an equal extent, the distinctly defensive character of the first terrace reached by removable ladders being still preserved. In this province a doorway on the ground is always provided in building a house, but originally this space was not designed to be permanent; it was left merely for convenience of passing in and out during the construction, and was built up before the walls were completed. Of late years, however, such doorways are often preserved, and additional small openings are constructed for windows. [Illustration: Plate LXXXIX. Masonry in the north wing of Kin-tiel.]