The same is true of other varieties of Pueblo basketry, notably the common decorated wickerware, two specimens of which are given in Figs. 328 and 329. This ware is of the interlaced style, with radially arranged web filaments. Its geometric characters are easily distinguished from those of the coiled ware. Many examples exhibit purely conventional elaboration, the figures being arranged in rays, zones, checkers, and the like. It is to be expected, however, that the normal ornament of this class of products should be greatly interfered with through attempts to introduce extraneous elements, for the peoples have advanced to a stage of culture at which it is usual to attempt the introduction of mythologic representations into all art. Further consideration of this subject will be necessary in the next section of this paper. [Illustration: FIG. 327. Coiled tray with geometric devices, probably modified by ideographic association. Moki work--1/4.] [Illustration: FIG. 328. Tray of interlaced style of weaving, showing geometric ornament, probably modified by ideographic association. Moki work--1/4.] The processes of pure geometric elaboration with which this section is mainly concerned can be studied to best advantage in more primitive forms of art. [Illustration: FIG. 329. Tray of interlaced style of weaving, showing geometric ornament, probably modified by ideographic association. Moki work--1/4.] _Non-essential constructive features._--Now, all the varied effects of color and design described in the preceding paragraphs are obtained without seriously modifying the simple necessary construction, without resorting to the multiple extraordinary devices within easy reach. The development and utilization of the latter class of resources must now receive attention. In the preceding examples, when it was desired to begin a figure in color the normal ground filament was dropped out and a colored one set into its place and made to fill its office while it remained; but we find that in many classes of work the colored elements were added to the essential parts, not substituted for them, although they are usually of use in perfecting the fabric by adding to serviceability as well as to beauty. This is illustrated, for example, by the doubling of one series or of both warp and woof, by the introduction of pile, by wrapping filaments with strands of other colors, or by twisting in feathers. Savage nations in all parts of the world are acquainted with devices of this class and employ them with great freedom. The effects produced often correspond closely to needlework, and the materials employed are often identical in both varieties of execution.