of computation, five hundred persons, and an average of twelve persons to a house.
When first discovered the Dakotas lived in houses constructed with a frame of poles and covered with bark, each of which was large enough for 
Fig. 8.—Dakota wä-ká-yo, or Skin Tent. several families. They dwelt principally in villages in their original area % on the head-waters of the Mississippi, ill the present State of Minnesota. Forced upon the plains by an advancing white population, but after they had become possessed of horses, they invented a skin tent eminently adapted to their present nomadic condition. It is superior to any other in use among the American aborigines from its roominess, its portable character, and the facility with which it can be erected and struck. The frame consists of thirteen poles from fifteen to eighteen feet in length, which, after being tied together at the small ends, are raised upright with a twist so as to cross the poles above the fastening. They are then drawn apart at the large ends and adjusted upon the ground in the rim of a circle usually ten feet in diameter. A number of untanned and tanned buffalo skins, stitched together in a form adjustable to the frame, are drawn around it and lashed together, as shown in the figure. The lower edges are secured to the ground with tent-pins. At the top there is an extra skin adjusted as a collar, so as to be open on the windward side to facilitate the exit of the smoke. A low opening is left for a doorway, which is covered with an extra skin used as a drop. The fire-pit and arrangements for beds are the same as in the Ojibwa lodge, grass being used in the place of spruce or hemlock twigs. When the tent is struck, the poles are attached to a horse, half on each side, like thills, secured to the horse's neck at one end, and the other dragging on the ground. The skin-covering and other camp-equipage are packed upon other horses and even upon their dogs, and are thus transported from place to place on the plains. This tent is so well adapted to their mode of life that it has spread far and wide among the Indian tribes
