116 BUREAU OF AMERICAN ETHNOLOGY [Bull. 1S2 



The Silver Lake forms have a more definitive shoulder and less 

 basal taper than the Lahe Mohave type. 



The base comprises never more than half the whole length, usually about a third. 

 It is always somewhat rounded at the butt and in material and workmanship 

 is closely akin to the Lake Mohave with the better specimens showing good 

 pressure retouch and the poorer ones showing only percussion. [Amsden, 1937, 

 p. 84.] 



Both forms appear to have a rather wide dispersal but do not 

 appear in any depth. Comparable forms have been recovered and 

 reported not only from Virginia and North Carolina, but they have 

 been noted from West Virginia, eastern Tennessee, Vermont, and 

 Alaska as Avell. Mrs. Campbell (1936, p. 297) indicates that the 

 Silver Lake culture — 



may possibly antedate the Pinto Basin (Lake Mohave) since the sites are 

 located on much higher terraces and lack both manos and metates and the 

 accompanying scrapers which approach more definitely old European forms. 



A number of the Bluestone Creek drainage points resemble the 

 Neho Hill point in outline (Shippee, 1948; Chapman, 1948) and as a 

 rule the width is about one-sixth of the length and varies, in cross 

 section, from elliptical to lenticular. Flaking is not always regular 

 over the entire surface and secondary chipping or retouching occurs 

 only on the better-made specimens. The Nebo Hill point has been 

 estimated to range in age from 3,000 to 4,000 years old, but so far the 

 Virginia and North Carolina specimens have not been dated. 



Other points from the Bluestone Creek drainage are long, lanceolate 

 blades with moderately parallel sides whose basal terminals are either 

 rounded, slightly concave, convex, or project at an obtuse angle. 

 Technique of manufacture is not consistent. Some indicate that they 

 were fashioned by percussion, others by pressure, and a few have been 

 formed by rapping. In contrast to percussion, this rapping process is 

 brought about by dealing short, well-directed blows directly down- 

 ward and vertical to the long axis of the artifact, resulting in a 

 crushing rather than a chipping off of the unwanted portions. 



C. H. Webb (1948, p. 230) has described two unusual types of 

 chipped stone artifacts which were thought to be confined to north- 

 western Louisiana and contiguous areas. These are the Albany type 

 beveled scraper and the San Patrice type projectile point, which are 

 thought to derive from the late Archaic or Transitional Horizon. 



The San Patrice point is especially interesting because, although typologically 

 different from the Folsom or fluted points, it seems to represent a late survival 

 in this area of the traits of concave base, smoothed basal margins, and thinning 

 of the basal segment by removal of longitudinal flakes. . . . Others (Martin, 

 Quimby and Collier, 19-17; Griffin, 194G) have suggested that Folsom and Yuma 

 artifacts may have persisted to a later period in the eastern United States than 

 in the West, since they have been found in the lower levels of several eastern 

 Archaic sites. 



