griffin] ARCHAEOLOGICAL SURVEY OF NORRIS BASIN 273 



curved outward so that the lip is practically perpendicular. On 

 most of the exterior surfaces this change in direction of the curve 

 of the rims was brought about gradually, but on the interior surface 

 there is a well-defined break or angle and the upper segment of 

 the interior surface of the rim is almost, if not completely, horizon- 

 tal (pi. 147, a, b). It would be quite difficult to separate jar-shape 

 A from jar-shape B on the basis of the appearance of the exterior 

 rim, but it was impossible to group them together once the unusual 

 character of the inner rim treatment was recognized. There are 89 

 sherds that were classed as belonging to this group and of these 68 

 percent have a hardness of 2-2.5; 19 percent can be scratched by 

 gypsum or 2; and 13 percent are 2.5. The texture is ordinarily 

 medium fine as only about 10 percent of the sherds have a medium 

 texture. The body of the vessel was tooled with a cord-wrapped 

 paddle but the rims are commonly smoothed, especially where there 

 is a noticeable outer rim band. The lower part of the rim on this 

 type is straight in 46 percent of the sherds and slightly flaring in 

 48 percent. The manner in which the upper segment of the rim 

 either curves or angles rather sharply outward gives an erroneous 

 impression as to the curvature of the entire rim. On 53 percent of 

 the sherds there is a definite upper rim band that was not completely 

 molded onto the outer surface. The height of this rim band is given 

 in Chart XVI. The shape of the lip was either rounded, or narrowed 

 and rounded, in about an equal percentage of the cases. The thick- 

 ness of the lip ranged from 0.3 cm to 1 cm, with over 85 percent 

 being 0.4 cm to 0.7 cm. The range of the rim thickness is from 

 0.5 cm to 1.5 cm, with 80 percent of the sherds being between 0.7 cm 

 and 1 cm. The measurement of the flattened, horizontal upper rim 

 was also taken and was found to be between 1.5 cm and 2.5 cm in 

 85 percent of the sherds. 



The color ranges from dark gray to yellowish tan and pinkish tan. 

 Only about 30 percent of the sherds showed discoloration due to 

 smoke blackening. 



The estimated diameters were for Sherd No. 3, 11 inches; No. 22, 

 11 inches; No. 33, 15 inches; No. 68, 10 inches; No. 79, 9 inches; and 

 No. 81, 13 inches. 



Jar-Shape B 



The sherds in this group comprised the largest single class from 

 this site. The hardness of the group corresponds to that of the other 

 sherds from this site. Sixty-four percent of the sherds are 2-2.5; 

 24 percent are 2 ; and 12 percent have a hardness of 2.5. The texture 

 is ahnost entirely medium fine, as over 90 percent of the sherds can 



154676—38 19 



