The purpose of this work is to identify the powdered material contained in one of the tubes in order to confirm the hypothesis generated from ethnographical sources, that the rapd (snuf3') complex was associated with the consumption of Anadenanthera colubrina var. cebil, Fabaceae, the cebil, or, if not, which materials were inhaled. Following analysis with a light microscope, petrographic microscope and scanning electron microscope the unknown material was identified as cebil by comparison with reference material and specialized literature.
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