MYTHS OF MEXICO AND PERU
exhibited many original characteristics, and which in some decree was a link between the cultures of Mexico and Central America. Traces of a still older population than any of these are still to be found in the more remote parts of Mexico, and the Mixe, Zaque, Kuicatec, and Popolcan are probably the remnants of prehistoric races of vast antiquity.
The Cliff-dwellers
It is probable that a race known as "the Cliff-dwellers," occupying the plateau country of Arizona, New Mexico, Colorado, and Utah, and even extending in its ramifications to Mexico itself, was related ethnologically to the Nahua. The present-day Pueblo Indians dwelling to the north of Mexico most probably possess a leaven of Nahua blood. Ere the tribes who communicated this leaven to the whole had intermingled with others of various origin, it would appear that they occupied with others those tracts of country now inhabited by the Pueblo Indians, and in the natural recesses and shallow caverns found in the faces of the cliffs erected dwellings and fortifications, displaying an architectural ability of no mean order. These communities extended as far south as the Gila river, the most southern affluent of the Colorado, and the remains they have left there appear to be of a later date architecturally than those situated farther north. These were found in ruins by the first Spanish explorers, and it is thought that their builders were eventually driven back to rejoin their kindred in the north. Farther to the south in the canons of the Piedras Verdes river in Chihuahua, Mexico, are cliff-dwellings corresponding in many respects with those of the Pueblo region, and Dr. Hrdlicka has examined others so far south as the State of Jalisco, in Central Mexico. These may be the ruins of dwellings