Only eight specimens are considered to have been cores. Three are of
quartzite, three of agate and two of fossilized wood. The largest is
about 3 × 3 × 2 inches, the smallest about a one inch cube. All are
irregular, none fluted or prismatic. Since there were so few cores
it is believed that the primary work of preparing flakes took place
elsewhere, perhaps at the source of the material.
[Illustration: FIGURE 42—Choppers and hammerstones, ½ actual size.]