92 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



forcing, fall into six main types : oval in outline but having a point at 

 each end (NAa), oval without points (NE), rectilinear in outline 

 with one round and one straight end (NAb2), triangular (NBa), 

 diamond-shaped (NC), and diamond-shaped with beveled edges 

 (NCa). 



The first group (NAa) is subdivided into large and small blades. 

 Of the former blades there are six large fragments made of various 

 chert materials. Two of these fragments appear to be from the same 

 specimen with only a small midsection missing. When these two frag- 

 ments are put together and aligned in relation to their respective curves 

 they produce a large blade measuring 144 by 75 mm. The other four 

 fragments are of the same type, being characterized by their large size 

 and beautiful retouching as well as by their thinness (pi. 7, fig. 2, in, 11). 

 The large size of these fragments is indicated by the range of their 

 measurements, 123 to 145 mm in length, 78 to 53 mm in width, and 

 15 to 7 mm in thickness. The majority of the pieces are heavily 

 encrusted with lime (pi. 7, fig. 2, ///). They are the finest examples of 

 large flint work from the site. 



The smaller oval knife blades of this type number seven complete 

 pieces and nine fragments. The seven complete pieces difi^er from the 

 above in lacking bilateral symmetry. They are flattened along one edge 

 as shown in plate 7, figure 2, h. The specimen illustrated is the best of 

 the seven, some of which are rather crude and range from 85 to 18 mm 

 in length, from 38 to 19 mm in width, and from 1 1 to 4 mm in thick- 

 ness. The material is jasper in the majority of cases. As a rule the 

 flattei>ed side is the thickest and the most poorly chipped, and it is 

 possible that a handle was fitted on this side. However, lacking any 

 bone or other objects suggesting such handles, it is more probable that 

 the blade itself was held here. The remaining nine well chipped frag- 

 ments of jasper and chert appear to have been of the regular pointed 

 oval type. Like the larger specimens of this type described above, they 

 are heavily lime incrusted. 



Of the second type, oval without points (NE), there are five 

 complete specimens and twelve fragments. The specimen figured 

 (pi. 7, fig. 2, k) is typical. It is 96 mm long by 45 mm wide, and the 

 material is yellow jasper. The other four complete specimens are 

 similar in size and shape ; all are retouched on both faces and are 

 very thin. So' far as can be determined from their incomplete condi- 

 tion, the twelve broken fragments represent similar artifacts. 



Only one specimen is rectilinear in outline with one round and one 

 straight end. Hence it really represents a unique form rather 

 than a distinct type. The material is blark quartzite ( ?). and the arti- 



