198 BUREAU OF AMERICAN ETHNOLOGY [Bull. 189 



Type 2 keeled end scrapers. — This type of scraper, represented by 57 speci- 

 mens, differs from Type 1 by having a natural triangular keel without being 

 shaped by retouching. The keel is sharp and well defined. Overall lengths 

 vary from 21 mm. to 40 mm. ; widths from 17 mm. to 27 mm. ; and thickness 

 from 6 mm. to 12 mm. Mean readings would be lengths, 29 mm. ; widths, 21 

 mm. ; and thickness, 8 mm. 



In outline, these scrapers are roughly triangular with slightly excurvate 

 edges. Type 1 has its dorsal surface retouched all over rising to a rounded 

 keellike prominence. 



Small round scrapers (pi. 25, A, p-z). — Twenty-one scrapers have 

 been placed into this category. They are not absolutely round, but 

 tend to be somewhat oval in outline. They vary in maximum length 

 from 19 mm. to 28 mm., in maximum width from 18 mm. to 25 mm., 

 and in maximum thickness from 7 mm. to 10 mm. Scrapers of this 

 form are not too plentiful and are, perhaps, the end result of many 

 retouchings. 



Large and small teardrop end scrapers (pi. 25, B^ a-d). — Teardrop 

 end scrapers are ovoid in outline and planoconvex in form. All are 

 flake tools. Large teardrop scrapers range in length from 37 mm. 

 to 51 mm., in width from 21 mm. to 30 mm., and in thickness from 

 6 mm. to 11 mm. Small teardrop scrapers range in length from 23 

 mm. to 33 mm., in width from 16 mm. to 19 mm., and in thickness 

 from 5 mm. to 8 mm. The ventral sides are always concave while 

 the dorsal surfaces have the edges retouched gradually sloping to 

 a flat keel. The lateral edges are slightly excurvate in outline. Each 

 of these forms is represented by 6 specimens or 12 in all. 



Small planoconvex end scrapers (pi. 25, 5, e-m). — End scrapers of 

 this type do not conform to any special group but are established 

 solely upon form. Seven specimens have been assigned to this type. 

 In length they vary from 23 mm. to 32 mm., in width from 16 mm. to 

 22 mm., and in thickness from 7 mm. to 10 mm. One scraper (field 

 cat. No. 1387) has a distinct graver tip near the butt end of the tool. 



Large flake end scrapers (pi. 25, 5, n). — There are 20 specimens in 

 this group. Flake end scrapers are mostly irregular fragments of 

 flint with a flat ventral surface and retouching on one end. The rest of 

 the artifact was never retouched. Their lengths range from 27 mm. 

 to 56 mm., widths from 14 mm. to 29 mm., thickness from 2 mm. to 

 11 mm. One specimen (field cat. No. 3049) has a wide notch worked 

 out near the base. The specimen measures 17 mm. across. Apparently 

 this was used to smooth down wooden tools, such as arrow shafts, etc. 



Small -flake end scrapers (pi. 25, 5, <9^w). — There are 43 specimens 

 in this group. These are much smaller flakes and, like the larger, are 

 worked on only one end. The difference between the two is a matter 

 of length. These scrapers vary in length from 17 mm. to 29 mm., 



