. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. Figs. 9, 10. Flint Knives in wooden handles. § From Burial Cave in Coahuila, 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 Essex Institute. 1n. Salem, Mass. , Essex Institute

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