and there. These houses, each of which consists of but two or three small chambers, are built of stone, and stand but a few feet above the bottom of the canon. They are narrow, and not very high, as the cavity in the rock is not very deep. Corrals for some kind of domestic animals are found by the side of these houses in the same hollows in the rock. This is proved by a mass of excrement, about a foot in depth, still there, whether of the goat or sheep cannot be stated, but this fact shows that they were inhabited subsequent to the period of European discovery, although they may have been built and used before. The canon, at this point, is from three hundred to five hundred feet wide.
I wish to call attention again to the San Juan district, to its numerous ruins, and to its importance as an early seat of Village Indian life. These ruins and those of a similar character in the valley of the Chaco, together with numerous remains of structures of sandstone, of cobblestone, and adobe in the San Juan Valley, in the Pine River Valley, in the La Plata Valley, in the Animas River Valley, in the Montezuma Valley, on the Hovenweep, and on the Rio Dolores, suggest the probability that the remarkable area within the drainage of the San Juan River and its tributaries has held a prominent place in the first and most ancient development of Village Indian life in America. The evidence of Indian occupation and cultivation throughout the greater part of this area is sufficient to suggest the hypothesis that the Indian here first attained to the condition of the Middle Status of barbarism, and sent forth the migrating bands who carried this advanced culture to the Mississippi Valley, to Mexico, and Central America, and not unlikely to South America as well.
Indian migrations are gradual outflows from an overstocked area, followed by organization into independent tribes, and continuing through centuries of time, until the ethnic life of each tribe is expended, or a successful establishment is finally gained in a new and perhaps far distant land. They planted gardens and constructed houses as they advanced from district to district, and removed as circumstances prompted a change of location.
Since the cultivation of maize and plants precedes or is synchronous with this stage of development, it leads to the supposition that maize must have been indigenous in this region, and that it was here first brought under
