[Illustration: BUREAU OF AMERICAN ETHNOLOGY SEVENTEENTH ANNUAL REPORT PL. CLXVI LINEAR FIGURES ON FOOD BOWLS FROM SIKYATKI] In figure 321 there is a still further development of the same design and a lack of symmetry on the two sides. The square spirals are replaced on the left by three stepped figures, and white spaces with parallel lines are introduced in the arms of a W-shape figure. [Illustration: FIG. 323--W-pattern; bird form] In figure 322 the same design is again somewhat changed by modification of the spirals into three triangles rimmed on one side with a row of dots, which are also found on the outer lines surrounding the lower part of the design. [Illustration: FIG. 324--W-pattern; median triangle] In figure 323 the same W shape design is preserved, but the space in the lower reentrant angle is occupied by a symmetrical figure resembling two tail-feathers and the extremity of the body of a bird. When this figure is compared with the design on plate CXLVI, _a_, resemblances are found in the two lateral appendages or wings. The star emblem is also present in the design. The median figure in that design which I have compared to the tail of a bird is replaced in figure 324 by a triangular ornament. The two wings are not symmetrical, but no new decorative element is introduced. It, however, will be noticed that there is a want of symmetry on the two sides of a vertical line in the figure last mentioned. The right-hand upper side is continued into five pointed projections, which fail on the left-hand side. There is likewise a difference in the arrangement of the terraced figures in the two parts. The sides of the median triangles are formed of alternating black and white blocks, and the quadrate figure which it incloses is etched with a diagonal and cross. [Illustration: FIG. 325--Double triangle; two breath feathers] [Illustration: FIG. 326--Double triangle; median trapezoid] The decoration in figure 325 consists of two triangles side by side, each having marginal serrations, and a median square key pattern. One side of these triangles is continued into a line from which hang two breath feathers, while the other end of the same line ends in a round dot with four radiating, straight lines. The triangles recall the butterfly symbol, the key pattern representing the head. [Illustration: FIG. 327--Double triangle; median rectangle] [Illustration: FIG. 328--Double compound triangle; median rectangle]