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A look at how the Pomo Indians of northern California removed poisonous tannic acid from the acorns of the tan oak chishkale (the beautiful tree) to feed the tribe.
University of California Extension Ctr. for Media & Independent Learning, 2000 Center St., 4th Fl., Berkeley, CA 94704, Phone: (510)642-0460, Fax: (510)643-9271, Email: mediaservices@ucxonline.berkeley.edu
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Running time 20 minutes.
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