NO. II PUEBLO RUINS IN ARIZONA HAURY AND HARGRAVE 65 



great amount of it has an unmistakable unity. On the basis of the 

 chronological checks that have been provided by datable charcoal, this 

 dominant form was in vogue before and after 1290. Those specimens 

 that cannot be classed in the above group either approach the decorated 

 red ware at the lower end of the scale represented at Showlow, or 

 they fall in the upper end of the sequence, also represented at Show- 

 low. Since the predominating type of decorated redware at Pinedale 

 is clearly a lineal descendent from the orange-red Little Colorado 

 polychrome and adumbrates the development of Four-mile poly- 

 chrome, we shall refer to it as a distinct sub-type, " Pinedale poly- 

 chrome," 



The base clay does not differ greatly in texture from that used in 

 the black-on-white, although it usually burns darker. The tempering 

 is almost pure ground sherds. In plate 20 a small amount of sherd 

 tempering is shown (enlarged six times) just as it was washed from 

 unfired clay. The largest fragment distinctly shows the scorings found 

 in olla interiors. On other particles, bits of black-on-white designs 

 may be seen, and the dark particles reveal either black paint or the 

 red slip of former vessels. The fragments of the latter are rarely 

 found in the paste of the black-on-white pottery. Quartz grains and 

 other extraneous" material occur in such negligible amounts that their 

 presence is probably accidental. 



The slip is fairly thin and varies in color from red to an orange- 

 yellow, the former color being the more common. 



The black paint on this pottery shows a gradation from a dull to a 

 distinct glaze finish. The lack of a glaze technique in the lower Show- 

 low level, which we have indicated as being older than the Pinedale 

 horizon represented by this pottery, and the gradual shading into 

 glaze decoration are strongly suggestive of the fact that paint com- 

 pounding was passing through an experimental stage. This, however, 

 does not imply local invention of glaze, as stimuli from a focus not 

 yet determined could readily have affected ceramic decoration in 

 Pinedale pueblo. 



While the glaze generally resembles that of Four-mile polychrome, 

 in the better examples it is more lustrous, often displaying greater 

 relief, and usually freer of gritty particles^. On firing, the glaze often 

 ran, thus blurring the sharpness of the lines. These dififerences, how- 

 ever, because of the variability of the paint, can scarcely be used as 

 determinants in distinguishing the types. 



Quantitative determinations of the glaze materials by Mr. F, G. 

 Hawley again show lead, copper, and some manganese to be present. 



