In studying the ground plans of the three modern villages on East Mesa, the fact is noted that both Sichomovi and Hano differ architecturally from Walpi. The forms of the former smaller pueblos are primarily rectangular with an inclosed plaza in which is situated the kiva; Walpi, on the other hand, although furnished with a small plaza at the western end, has kivas located peripherally rather than in an open space between the highest house clusters. Sichomovi is considered by the Hopi as like Zuñi, and is sometimes called by the Hano people, Sionimone, "Zuñi court," because to the Tewan mind it resembles Zuñi; but the term is never applied to Walpi.[107] The distinction thus recognized is, I believe, architecturally valid. The inclosed court or plaza in Tusayan is an intrusion from the east, and as eastern colonists built both Hano and Sichomovi, they preserved the form to which they were accustomed. The Sikyatki builders drew their architectural inspiration likewise from the east, hence the inclosed court in the ruins of that village. The two most considerable house clusters of Sikyatki are at each end of a longer axis, connected by a narrow row of houses on the other sides. The western rows of houses face the plain, and were of one story, with a gateway at one point. The opposite row was more elevated, no doubt overlooking cultivated fields beyond the confines of the ruin. No kivas were discovered, but if such exist they ought to be found in the mass of houses at the southern end. I thought we had found circular rooms in that region, but cursory excavations did not demonstrate their existence. As there is no reason to suspect the existence of circular kivas in ancient Tusayan, it would be difficult to decide whether or not any one of the large rectangular rooms was used for ceremonial purposes, for it is an interesting fact that some of the oldest secret rites in the Hopi villages occur, not in kivas, but in ordinary dwelling rooms in the village. It has yet to be shown that there were special kivas in prehistoric Tusayan. [Illustration: BUREAU OF AMERICAN ETHNOLOGY SEVENTEENTH ANNUAL REPORT PL. CXVII EXCAVATED ROOMS ON THE ACROPOLIS OF SIKYATKI]