Other tools are made from flakes. Two might be knives: one ([Fig. 11], II) is of gray chert, long and ovoid, rough at the base but well finished around the edges. It is 5.9 cm. long, 2 cm. wide. The second is made from a flat, triangular-shaped piece of petrified wood, which is unmodified at one end (the base), but has good secondary flaking around the edges. It is 5.1 cm. long, 3 cm. wide, and 6 mm. in thickness.
A thumbnail end scraper ([Fig. 11], LL) is of gray quartz, 3 × 2 cm. in diameters, 6 mm. thick. Unifacial beveling on one end and one side is quite steep and the reverse face shows many tiny fractures around the cutting curve.
Fig. 12. Ornaments and Stone Tools. A, Polished stone tablet. B, Banded slate bead. C, Bone bead. D, Sandstone bead or concretion. E, Pitted stone. F, Brown sandstone whetstone. G, H, Choppers of petrified wood. I, Polished stone celt. J, Small hammerstone. K, Maul of petrified wood. (All to scale except B, C and D which are only slightly reduced.)
There are 15 small scrapers ([Fig. 11], MM-PP) which are ovate or triangular in outline and made from flakes which vary from 3 to 8 mm. in thickness. They are of tan, brown and mottled gray chert, petrified wood, and gray quartzite. Most are flaked bifacially but some show a preponderance of flaking on the convex face. Sizes range from 2 to 4.5 cm. Five small broken flake objects show some flaking.
There are four drills, all made of tan chert. One flake drill ([Fig. 11], KK) has an expanded base, a shaft which is triangular in cross section and a keen point which shows use polish. A second ([Fig. 11], JJ) has a geniculate form, is less well made, but shows usage at the tip. The other two are tiny, 2.1 and 2.2 cm. long, have one flat and one keel-shaped face, and are worked on two of the three planes. They could have been used as gravers or drills.
Polished and Ground Stone Objects
Few objects of polished stone were found. One large celt ([Fig. 12], I) is from the surface. It is symmetrically ovate, 17.5 cm. long, 7.5 cm. wide, and 3.8 cm. thick. It shows pecking marks on the faces, but is well ground at the bit and along the edges. A triangular hard sandstone pebble, 7.5 × 7 × 3.3 cm., has round pits, 3 cm. in diameter, on each face, ([Fig. 12], E). There are smooth depressions on two edges. A large pitted mortar stone is of ferruginous sandstone, 22 × 16 cm. One face has an oval depression, 13 × 12 cm., in the center of which, and on the opposite face, are deep hemispherical pits, 3.5 cm. in diameter.
An oval-shaped hammerstone ([Fig. 12], J) of tan chert is smoothed on two faces, roughened by pecking around all edges. A whetstone of brown sandstone ([Fig. 12], F) has one deep and two shallow grooves on one face, two grooves on the opposite.
A rectangular flat tablet of mottled brown slate ([Fig. 12], A) was found during the burial excavations but not in direct association. It is 6 cm. long, 4.5 cm. wide, and 3.5 mm. thick. The faces are polished and the edges ground smooth with rounded corners, but there are no decorations or perforations.