(Pl. 23, d-e)
Two very similar pieces make up the addition to this class. Both are elongated, tapering sections of rose quartzite on which the margins have been retouched and the tip of each is notably abraded. The large ends show no evidence of preparation for hafting, so presumably they were used as a hand reamer or drill. The lengths are 6 cm. and 10 cm.
Hand Pick
The two new specimens, roughly triangular in outline, resemble the single piece recovered in 1947. On both, the working end tapers to a heavy, well-formed point, whereas the opposite end is bulbous and fits comfortably into the palm of the hand. Lengths are 9.8 cm. and 13 cm., respectively, with basalt and quartzite as materials.
Projectile Points
Since projectile points as a general class have proved to be the best criteria for establishing the stratigraphic differences whereby Topanga Phase I and Phase II may be distinguished, and because projectile points, to some measure, provide useful comparative data, it seems advisable to illustrate all the complete and near-complete specimens collected during both seasons.
With additional information some modification has been made over last seasons presentation. Here are included two groups of projectile points, each of which is associated with a definite phase of the Topanga Culture. Phase I is characterized by large blades and large points, most of which are composed of a highly patinated basalt and have been manufactured through the percussion or rough pressure-flaking technique (pl. 21, a-l). Phase II is characterized by small projectile points of the “dart” class which in material range through slightly patinated basalt, glassy basalt, obsidian, chalcedony, and chert. All have been finished in a rough to medium pressure technique (pl. 22, c-u). Totally absent in either phase is the light, thin, finely pressure-flaked “arrow point” of the historic or protohistoric periods.
Table 3
Frequency of Flaked Artifacts by Depth
| 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 |
| Side scrapers | 178 | 129 | 73 | 37 | 12 | 5 | 7 | 3 | 2 | 1 | 447 |
| Straight-edge knives | 75 | 42 | 42 | 19 | 12 | 3 | ... | 2 | 1 | ... | 196 |
| Ovate scrapers | 9 | 10 | 5 | 8 | 1 | 1 | 1 | ... | ... | ... | 35 |
| End scrapers | 11 | 14 | 10 | 8 | 2 | 4 | ... | ... | ... | ... | 49 |
| Snub-nose scrapers | 8 | 15 | 6 | 1 | 2 | ... | ... | ... | ... | ... | 32 |
| Flake scrapers | 25 | 20 | 14 | 8 | 2 | 1 | 3 | ... | ... | ... | 73 |
| Cobble scrapers | 2 | 1 | 3 | ... | 1 | 1 | ... | ... | ... | ... | 8 |
| Concave scrapers | 3 | 3 | 2 | 1 | ... | ... | ... | ... | ... | ... | 9 |
| Thumbnail scrapers | 1 | ... | ... | ... | ... | ... | ... | ... | ... | ... | 1 |
| Unifaced choppers | 48 | 56 | 33 | 27 | 12 | 3 | 3 | 3 | ... | ... | 185 |
| Bifaced choppers | 152 | 117 | 113 | 49 | 14 | 7 | 6 | 5 | 1 | ... | 464 |
| Core hammerstones | 339 | 422 | 429 | 154 | 93 | 17 | 18 | 9 | 5 | 1 | 1,478 |
| Total by level | 851 | 829 | 730 | 312 | 151 | 42 | 38 | 22 | 9 | 2 | 2,986 |