and so on until four encircling rows of dark, alternating rectangles
have been produced. Desiring to introduce a meandered design he has
taken the upper series of rectangles as bases and adding colored
filaments at the proper time has carried oblique lines, one to the
right and the other to the left, across the six succeeding ridges of
the warp coil. The pairs of stepped lines meeting above were joined in
rectangles like those below, and the decoration was closed by a border
line at the top. The vessel was then completed in the light colored
material. In this ornament all forms are bounded by two classes of
lines, vertical and horizontal (or, viewed from above or below, radial
and encircling), the lines of the warp and the woof. Oblique bands of
color are made up of series of rectangles, giving stepped outlines.
Although these figures are purely geometric, it is not impossible that
in their position and grouping they preserve a trace of some imitative
conception modified to this shape by the forces of the art. They serve
quite as well, however, to illustrate simple mechanical elaboration as
if entirely free from suspicion of associated ideas.

[Illustration: FIG. 321. Coiled basket with encircling bands of
ornament in white, red, and black, upon a yellowish ground. Obtained
from the Indians of the Tule River, California--1/8.]

In Fig. 321 I present a superb piece of work executed by the Indians
of the Tule River, California. It is woven in the closely impacted,
coiled style. The ornament is arranged in horizontal zones and
consists of a series of diamond shaped figures in white with red
centers and black frames set side by side. The processes of
substitution where changes of color are required are the same as in
the preceding case and the forms of figures and the disposition of
designs are the same, being governed by the same forces.