. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fig. 106. Fig. 107. A highly polished blade of brown-black color. It is almost a perfect ellipse in outline excepting the interruption of the groove. The borders of the groove are slightly ridged. By this is meant that from the crest of the ridges the surfaces decrease both ways by a con- cave curve. Length, 5W inches; width, 3J Please note that these images are extracted from scanned page images that may have been digitally enhanc
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fig. 106. Fig. 107. A highly polished blade of brown-black color. It is almost a perfect ellipse in outline excepting the interruption of the groove. The borders of the groove are slightly ridged. By this is meant that from the crest of the ridges the surfaces decrease both ways by a con- cave curve. Length, 5W inches; width, 3J 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. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
