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rl <br />• Unifaces: longitudinal <br />Description: generally <br />on one face which forms <br />is unmodified; all-over <br />Material: chert. <br />Edge angles: 55°-60°. <br />Edge wear: polish with <br />edge, Typ.- rre. Three specimens (not illustrated) <br />consists of thin flakes with marginal retouch <br />the cutting edge. A majority of flake surface <br />retouch not present. <br />limited step flaking. <br />Variation: edges are straight to slightly concave. The thickness of <br />the original flake is variable, but generally quite thin. <br />Special notes: the longitudinal edged tools probably overlap into the <br />modified flake tool category in that the characteristics of intentional <br />and casual modification tend to blend with one another. No side scrapers <br />were recovered, which may be an accident of preservation or of the col- <br />lection technique. The presence of modified flakes suggests that there <br />should be more representatives of this category than were found in the <br />initial survey. <br />Correlations with other sites: no comparable material located in the <br />literature search. <br />Unifaces: perimetrically flaked, Type IIC. Three Specimens (Fig. 9c, d, ~) <br />Description: tools are retouched around the perimeter of a generally <br />oval shaped flake, and there are multiple working edges present. Plano- <br />convex cross section is apparent, and edge angle is variable on the indi- <br />vidual tool. <br />Materials: chert and quartzite. <br />Edge angles: 55°-90° <br />Edge wear: step flaking and gouging. <br />Variation: the edge angle varies with the thickness of the flake; thicker <br />portions have steeper edge angles and more extensive retouch. <br />Size range: the long axis, 43-72 mm.; short axis, 29-50 nm.; and thickness, <br />9-22 nun. <br />Special notes: the perimetrically flaked uniface tools are quite variable <br />in size. Two are made on flakes and one on a core. Each tool exhibits <br />different characteristics within terms of edge wear and edge angle. They <br />each incorporate a variety of edge angles as the cross sections, which ar-e <br />generally piano-convex, have the thickest point adjacent to an edge, <br />rather than in the center of the tool. Thus, the edge closest to the <br />thick point is much steeper than the opposing edge. <br />Correlations with other sites: LoDaisKa 36-64 in. levels (Irwin and <br />Irwin 1959); Luster Cave (bJormington and Lister 1956); Pictograph Cave II! <br />(hlulley 1958); l2ilbur Thoma° S"~lte~' ((iret•rnit7 ~t .~'. 1971). <br />• <br />