. Bulletin. Ethnology. Fiti. 2i. Chipped implements of bliick jasper* (i actual size.) a, Leaf-shaped l)la(ie (Arroyo Corrieiites). h, Kiide blade, probably a reject from arrow-making (Neeoehea). Fuj. '25. Spikelike forms of black jasper pebble derivation, jjossibly reje(tts from arrow-makiiiK. (1 actual size.) a, Mi- raiiiar. /), Necocliea. as knives or scrapers, or for elaboration into othei- forms of im|)l(v ments, and that the body of the pebble, the nucleus, was Jiot in- tended as an implement at all, tmd was never used as such, uidess incidentally. Experiment can hardly fail to convince
. Bulletin. Ethnology. Fiti. 2i. Chipped implements of bliick jasper* (i actual size.) a, Leaf-shaped l)la(ie (Arroyo Corrieiites). h, Kiide blade, probably a reject from arrow-making (Neeoehea). Fuj. '25. Spikelike forms of black jasper pebble derivation, jjossibly reje(tts from arrow-makiiiK. (1 actual size.) a, Mi- raiiiar. /), Necocliea. as knives or scrapers, or for elaboration into othei- forms of im|)l(v ments, and that the body of the pebble, the nucleus, was Jiot in- tended as an implement at all, tmd was never used as such, uidess incidentally. Experiment can hardly fail to convince the most skeptical of the correctness of this view. Examples of the forms resulting from the ex])crimental work are inchuh'd in ])lat(^ 12 in association with specimens of like genesis left by the ancient inhab- itants of the Arf:;entine coast. Figure 23 is intenthnl to illus- trate further the pebble-frac- turing work. In a we have a pebble nucleus from the Ar- gentine coast from which two flakes have been removed by one, or at most, two strokes of the hammer. These flakes were of the teshoa type and doubtless served some useful purpose for the maker. Forms h and c represent a Potomac pebble of similar shaj>c which shows the result of two exi)erimental blows with the hammer. In h the flakes have been removed. In c they are replaced, and in d they are separately shown. It may be added here that the hannner- stones and anvil-stones used in the experimental work described above display, as the result of the fracturing work, markings iden-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Bureau of American Ethnology. Washington : G. P. O.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectethnolo, bookyear1901
