I have everywhere assumed _four_ stories. It is at least certain that there were not less than four. When Coronado visited the pueblo in 1540, he found "the houses with four stories."[104] Sr. Mariano Ruiz told me that "they all were of three stories;" but then he mentioned, below, the "casas de comodidad," thus indicating that the lowest story was used for store-rooms. It is very apparent from the ruins that, as I have indicated in the cross-sections, the western wall was unbroken, whereas from the east the stories rose in four retreating terraces. The western wall already mentioned was given additional strength, by means of the buttresses, of which I have given a small outline. The winds blow very fiercely over the _mesilla_, especially from the north-west; there is no tree to be seen on or about it, not even a cedar-bush, higher than a couple of feet at most. Against such blasts the solid wall was necessary, while the many intersecting partitions inside gave additional strength. It was a very solid structure as against winds, notwithstanding the comparative thinness of the walls,--0.63 m.--2 ft.--being their greatest width, and 0.33 m.--13 in.--their average. With reference to the cross-sections, it now becomes possible to approximate the total number of chambers, apartments, or cells, contained in the entire building; a point impossible even to estimate from the ground-plan alone. Leaving aside the northern appendix, about whose elevation I have not even means of conjecture, it becomes evident that the section whose four corners are marked respectively _a_, _c_, _d_, _d_, had the following number of compartments, starting with the lowest story, and remembering that, as above stated, one longitudinal row had six, and the other five, rooms:-- Lowest story 5 Second story 5 Third story 3 × 6 + 5 23 Fourth story 3 × 6 18 --- Total 51 rooms. _Brought forward_ 51 rooms. The section _d d e e_ had probably the same arrangement, and therefore, there being but two transverse rows, it contained in all 18 Section _e e f f_ contained on lower story 4 Second Story. 5 × 4 20 Third story. 4 × 4 16 Fourth story. 3 × 4 12 -- 52