It may be added that in this figure we have probably the most aberrant sun-symbol yet recognized, and on that account there is a possibility that the validity of my identification is more or less doubtful.
The three designs shown in [plate clviii], c, d, e, evidently belong in association with sun or star symbols, but it is hardly legitimate to definitely declare that such an interpretation can be demonstrated. The modern Tusayan Indians declare that the equal-arm cross is a symbol of the "Heart of the Sky" god, which, from my studies of the effigies of this personage on various altars, I have good reason to identify with the lightning.
Geometric Figures
INTERPRETATION OF THE FIGURES
Most of the pottery from Sikyatki is ornamented with geometric designs and linear figures, the import of many of which are unknown.
Two extreme views are current in regard to the significance of these designs. To one school everything is symbolic of something or some religious conception; to the other the majority are meaningless save as decorations. I find the middle path the more conservative, and while regarding many of the designs as highly conventionalized symbols, believe that there are also many where the decorator had no thought of symbolism. I have ventured an explanation of a few of the former.
Terraced figures are among the most common rectangular elements in Pueblo ceramic decorations. These designs bear so close a likeness to the modern rain-cloud symbol that they probably may all be referred to this category. Their arrangement on a bowl or jar is often of such a nature as to impart very different patterns. Thus terraced figures placed in opposition to each other may leave zigzag spaces suggesting lightning, but such forms can hardly be regarded as designed for symbols.
Rectangular patterns ([plates clxii][-clxv]) are more ancient in the evolution of designs on Tusayan pottery than curved geometric figures, and far outnumber them in the most ancient specimens; but there has been no epoch in the development reaching to modern times when they have been superseded. While there are many specimens of Sikyatki pottery of the type decorated with geometric figures, which bear ornamentations of simple and complex terraced forms, the majority placed in this type are not reducible to stepped or terraced designs, but are modified straight lines, bars, crosshatching, and the like. In older Pueblo pottery the relative proportion of terraced figures is even less, which would appear to indicate that basket-ware patterns were secondary rather than primary decorative forms.
By far the largest element in ancient Tusayan pottery decoration must be regarded as simple geometric lines, triangles, spirals, curves, crosshatching, and the like, some of which are no doubt symbolic, others purely decorative ([plate clxvi]). In the evolution of design I am inclined to believe that this was the simplest form, and I find it the most constant in the oldest ware. Rectangular figures are regarded as older than circular figures, and they possibly preceded the latter in evolution, but in many instances both are forms of reversion, highly conventionalized representations of more elaborate figures. Circles and crosses are sometimes combined, the former modified into a wavy line surrounding the latter, as in [plate clix], c, d, where there is a suggestion (d) of a sun emblem.