. Bulletin. Ethnology. a. MICROSTRUCTURE OF CROSS SECTIONS OF BEAD. Photographs by National Bureau of Standards. (For explanation, see p. 395.). 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