========================================================================= | Depth (in in.) | |----------------------------------------------------------| Type |0-6 6-12 12-18 18-24 24-30 30-36 36-42 42-48 48-54 54-60 |Total ------------------------------------------------------------------------- IA | 22 21 16 9 6 4 1 1 ... ... | 80 IB | 11 6 5 8 3 2 1 ... ... ... | 36 IC | 34 52 28 17 14 7 2 1 ... ... | 155 IIA |356 472 385 187 88 43 23 12 2 2 |1,570 IIB | 12 7 10 4 1 ... ... 2 ... ... | 36 III | 29 43 21 17 7 9 3 1 1 ... | 131 ------------------------------------------------------------------------- Total by| | level |464 601 465 242 119 65 30 17 3 2 |2,008 ------------------------------------------------------------------------- _Scrapers._ _Side scrapers (fig. 3, d-e)._--Ovoid to angular, with convex working edges. Frequently with scalloped working edges. _Straight-edge scrapers or knives (fig. 3, f)._--Irregular forms with a single straight, monofacial retouched margin along one side. _Ovoid or discoidal scrapers (fig. 3, a)._--Made from large flat flakes, often showing a percussion bulb on one surface, and worked to a near-symmetrical form. Chipping may extend over the whole of one or both faces. _End scrapers (Treganza and Malamud, 1950, pl. 20, k-l)._--Subrectangular in outline with one of the narrow ends flaked back to a low angle. _Snub-nosed scrapers (ibid., pl. 20, f-g)._--Like end scrapers with the exception that the flakes have been removed from the retouched end at a much steeper angle, producing a blunter but stronger working edge. _Cobble scrapers (ibid., pl. 20, c)._--Made from a split cobble showing wear along the sharp curved margin. Only slight retouching. _Flake scrapers or knives (fig. 3, g)._--Thin flakes monofacially flaked along portions of their peripheries. _Concave scrapers (fig. 3, c)._--These are neither common nor are they clearly stylized. They total only nine, all acquired during the second season. Though none are alike, they characteristically display a shallow localized concavity along one edge. In some instances the margin of the concavity shows signs of notable abrasion. Small chips have been sprung from the base of the concavity probably through use. Sizes range from 6 to 10 cm. in diameter with the depressions varying from .5 to 2 cm. Seven specimens were of basalt and one each of chert and porphyry. [Illustration: Figure 2. Scraper Plane Types] [Illustration: Figure 3. Scraper Types]