"The abnormal width of the Cliff Dweller's skull through the middle section, and the massive, dome-like forehead, is due in a measure to the crowding forward of the brain from the pressure which produced the flattening of the occiput. Any normal head with such a development would show a thinness of the bone in that region, whereas the opacity of the warrior's skull is remarkable in that region. If we may take the skull of this female, which has not been subjected to this pressure, as a type of the race, we are justified in considering the Cliff Dwellers as a people remarkably agreeable in traits of character. All the domestic propensities which form the basis of the family relation, the love of offspring, of friends and neighbors, are remarkably well developed. There is a magnificent moral influence shown in the development of conscientiousness, approbativeness and caution. The latter organ is so large as to suggest cowardice, but these people undoubtedly lived in an age when circumspection and eternal vigilance was the price of existence as well as of liberty. "I notice that the writer of the article on the Cliff Dwellers in last _Sunday's Republican_ makes the statement that they apparently had neither literature nor religion. He bases his assertions on the fact that he does not find altars or writings among their possessions. But appearances are against him. They apparently had both, from the structure of their skulls. The Cliff Dweller is largely endowed with the artistic and constructive organs of the brain with an unlimited capacity for invention and designing. Savage races far below him in these qualities have literature, and it is unreasonable to suppose that having these qualities both large and active, he did not use them. As to his religion, the single exception to the uniform opacity of the warrior's skull above mentioned in the crown of the head is in the organ of veneration. He did not have enough of spirituality and faith to supply a Methodist camp meeting, but he undoubtedly reverenced the Great Spirit and invoked the patronage of the god which he could comprehend. The other two skulls show as good a development of the religious organs as you will find in a general average of any Sunday-school in Denver. The Cliff Dwellers were undoubtedly religious. "In physical structure the Cliff Dweller presents a greater variety than is found in any race except the Caucasian. Their warriors were undoubtedly men of great endurance and strong physique with a good size of body. There were also among them types of character delicate in the extreme and possessing but little endurance. As a race they depended on prudence rather than strength for safety. They were shrewd, circumspect and diplomatic. In complexion they were darker than the Caucasian and much lighter than the American Indian. In diet they were almost if not quite exclusively graminivorous, living on grain and eating that raw."