to the parallels and meridians of the central tumuli of the sun and moon;[69-2] and however ignorant we are about the mound builders of the Mississippi valley, we know that they constructed their earthworks with a constant regard to the quarters of the compass. Nothing can be more natural than to take into consideration the regions of the heavens in the construction of buildings; I presume that at any time no one plans an edifice of pretensions without doing so. Yet this is one of those apparently trifling transactions which in their origin and applications have exerted a controlling influence on the history of the human race. When we reflect how indissolubly the mind of the primitive man is welded to his superstitions, it were incredible that his social life and his architecture could thus be as it were in subjection to one idea, and his rites and myths escape its sway. As one might expect, it reappears in these latter more vividly than anywhere else. If there is one formula more frequently mentioned by travellers than another as an indispensable preliminary to all serious business, it is that of smoking, and the prescribed and traditional rule was that the first puff should be to the sky, and then one to each of the corners of the earth, or the cardinal points.[70-1] These were the spirits who made and governed the earth, and under whatever difference of guise the uncultivated fancy portrayed them, they were the leading figures in the tales and ceremonies of nearly every tribe of the red race. These were the divine powers summoned by the Chipeway magicians when initiating neophytes into the mysteries of the meda craft. They were asked to a lodge of four poles, to four stones that lay before its fire, there to remain four days, and attend four feasts. At every step of the proceeding this number or its multiples were repeated.[71-1] With their neighbors the Dakotas the number was also distinctly sacred; it was intimately inwoven in all their tales concerning the wakan power and the spirits of the air, and their religious rites. The artist Catlin has given a vivid description of the great annual festival of the Mandans, a Dakota tribe, and brings forward with emphasis the ceaseless reiteration of this number from first to last.[71-2] He did not detect its origin in the veneration of the cardinal points, but the information that has since been furnished of the myths of this stock leaves no doubt that such was the case.[71-3]