Figure 335 bears a similarity to the last mentioned only so far as the lower half of the design is concerned. The upper part is not symmetrical, but no new decorative element is introduced. Triangles, frets, and terraced figures are inserted between two parallel lines which terminate in round dots with parallel lines. [Illustration: BUREAU OF AMERICAN ETHNOLOGY SEVENTEENTH ANNUAL REPORT PL. CLXVII GEOMETRIC ORNAMENTATION FROM AWATOBI] [Illustration: FIG. 337--Double triangle and feathers] The design in figure 336 is likewise unsymmetrical, but it has two lateral triangles with incurved terrace and dentate patterns. The same general form is exhibited in figure 337, with the introduction of two pointed appendages facing the hypothetical middle line. From the general form of these pointed designs, each of which is double, they have been interpreted as feathers. They closely resemble the tail-feathers of bird figures on several bowls in the collection, as will be seen in several of the illustrations. [Illustration: FIG. 338--Twin triangles] [Illustration: FIG. 339--Triangle with terraced appendages] [Illustration: FIG. 340--Mosaic pattern] Figure 338 is composed of two triangular designs fused at the greatest angles. The regularity of these triangles is broken by a square space at the fusion. At each of the acute angles of the two triangles there are circular designs with radiating lines, a common motive on the exterior of food bowls. Although no new elements appear in figure 338, with the exception of bracket marks, one on each side of a circle, the arrangement of the two parts symmetrically about a line parallel with the rim of the bowl imparts to the design a unique form. The motive in figure 339 is reducible to triangular and rectangular forms, and while exceptional as to their arrangement, no new decorative feature is introduced. The specimen represented in figure 340 has as its decorative elements, rectangles, triangles, parallel lines, and birds' tails, to which may be added star and crosshatch motives. It is therefore the most complicated of all the exterior decorations which have thus far been considered. There is no symmetry in the arrangement of figures about a central axis, but rather a repetition of similar designs. [Illustration: FIG. 341--Rectangles, stars, crooks, and parallel lines]