Plate CXLVIII, _a_, shows the spiral ornament worn down to its lowest terms, with no hint of the feather appendage, but its likeness in outline to those designs where the feather occurs leads me to introduce it in connection with those in which the feather is more prominent. Figure _b_ of the same plate represents a spiral figure with a bird form at the inner end, and a bundle of tail-feathers at the outer extremity. On this design there is likewise a figure of the dragon-fly and several unknown emblems. Figure _c_ has at one extremity a trifid appendage, recalling a feather ornament on the head of a bird shown in plate CXXXVIII, _a_. Figure _d_ has no conventionalized feather decoration, but the curved line terminates with a triangle. Its signification is unknown to me. For several reasons the design in _e_ reminds me of a bird; it is accompanied by three crosses, which are almost invariably found in connection with bird figures, and at the inner end there is attached a breath feather. This end of the figure is supposed to be the head, as will appear by later comparative studies. The bird form is masked in _f_, but the feather designs are prominent. This bowl is exceptional in having an encircling band broken at two points, one of the components of which is red, the other black. Feather designs are conspicuous in plate CXLIX, _a_, _b_, in the former of which curved incised lines are successfully used. In _c_, however, is found the best example of the use of incised work as an aid in pottery decoration, for in this specimen there are semicircles, and rings with four triangles, straight lines, and circles. The symbolism of the whole figure has eluded analysis. Figure _d_ has no feather symbols, but _e_ may later be reduced to a circle with feathers. The only symbols in the design shown in _f_ which are at all recognizable are the two zigzag figures which may have been intended to represent snakes, lightning, or tadpoles.