269 _a_ may be considered in the same way as the two parts of the arm of the animal represented. Since the animal here shown is a bird, these feather designs are in this way made to represent the bones of the wing. Similar considerations have determined the distribution of ornaments in the design fig. 270 _b_. Here the two feet will be recognized at the lower edge of the design. Adjoining it, above the “eye”, are two long white flicker-feather designs, which obviously represent the legs. Each of the two inverted double eyes under the jaws must be interpreted as a shoulder joint to which is attached the lower part of the arm in the form of a flicker-feather design. The forms here discussed are interpreted as various kinds of animals,—birds, quadrupeds, sea-monsters,—but never as the red-winged flicker, nor can the parts be interpreted as ornaments made of flicker-feathers. It is obvious that we are dealing here with a fixed form, which has a conventional name, and which is used for a variety of purposes. It will be noticed that this design occurs in three principal forms. In one of these it is cut off square at the upper end. Most of those shown in fig. 266 are of this type. Another characteristic form of this design has the pointed wing feather, (as the second one in the series fig. 266 _t_). A third form, which is not given in the series of named designs, seems to be quite common. It has a rounded tip, and may be observed, for instance, in the beak part in front of the upper eye in the lateral panels of figs. 203 and 269 _a_; also in the central field in fig. 273 _b_. The wing design is applied wherever a somewhat oval or rectangular field which is situated laterally has to be filled in, particularly when the field adjoins another design which is surrounded by heavy black lines, and which forms part of an animal body. For this reason the design appears very commonly in front of, over, or under the eye design. It is used to fill in the ears; it appears at the sides of the body, as in figs. 203 and 269 _a_; and it is used to fill in small fields which adjoin black lines, as for instance, in the lowest section of the lateral panels in fig. 269 _a_. On blankets the light circle on a darker background with black tip and small white segment at the base, is almost ever-present. The white segment at the base is limited very often by a pointed double curve,—like a brace,—which divides the adjoining colored field more or less distinctly into two halves. These may be observed, for instance, in one of the ear designs in figs. 202 and 269 _b_, and also in the design over the nose in fig. 202. This pattern is also used as a filler for long narrow spaces. According to Emmons this is called the “mouth design” (fig. 266 _j_) or the “eyebrow” (_e_), but it is often used on fields that cannot be interpreted as “mouth” or “eyebrow”, as for instance, in the lateral parts of the lower border of fig. 202 and in the lower corner of the box, fig. 274 _b_.