Terraced lozenge decoration, or
"double-splint-stitch-forms."]

[Illustration: FIG. 512. FIG. 513.
Double-splint-stitch.]

[Illustration: FIG. 514.--Diagonal parallel-line decoration.]

[Illustration: FIG. 515.--Splints at neck of unfinished basket.]

[Illustration: FIG. 516. FIG. 517.
Examples of indented decoration on corrugated ware.]

[Illustration: FIG. 518.--Cooking-pot of corrugated ware, showing
conical projections near rim.

_Pueblo coiled pottery developed from basketry._--Seizing the
suggestion afforded by the rude tray-molded parching-bowls,
particularly after it was discovered that if well burned they resisted
the effects of water as well as of heat, the ancient potter would
naturally attempt in time to reproduce the boiling-basket in clay. She
would find that to accomplish this she could not use as a mold the
inside of the boiling-basket, as she had the inside of the tray,
because its neck was smaller than its body. Nor could she form the
vase by plastering the clay outside of the vessel, not only for the
same reason, but also because the clay in drying would contract so
much that it would crack or scale off. Naturally, then, she pursued
the process she was accustomed to in the manufacture of the
basket-bottle. That is, she formed a thin rope of soft clay, which,
like the wisp of the basket, she coiled around and around a center to