has no floor or roof. The roof was probably destroyed by fire, kindled by the Apaches. It is not certain but is possible that the building was once covered on the outside with a red plaster, as it still is on the inside, so as to make it look from without like a red house; and in this possibility consists the only analogy that can be discovered between Casa Grande and Chichiltic-calli. In all other points there is not the slightest resemblance.
It is useless to look for the "red house" farther west, or between Florence and Fort Yuma. The ruins cease at Gila Bena, and the country beyond is almost a clear desert. East of Florence, between Riverside and San Carlos, the mountains are too wild and ragged. Within New Mexico there is no place affording any ground for identification with it in the latitude corresponding with the head of the Gulf of California. Chichiltic-calli, therefore, was situated in the southeastern corner of Arizona, and within a quadrangle which is bounded on the east by New Mexico, on the west by the Rio San Pedro, on the south by Sonora, and on the north by the Gila River. As the ruin does not stand upon any stream, it is impossible to fix the exact place; yet I was disposed at first to look for it in the vicinity of the new Fort Grant, or south of Mount Graham, where the fir woods really begin. The height above the sea of this station, where there are considerable ruins, is 4753 feet, while the mountains rise to 10,516 feet, and snow-storms are not only regular every winter, but considerable. If this site should not be found to answer, then the ruins at Eagle Creek, west of Clifton, might be considered. But
