San Diego, CA: San Diego Museum of Man, 1968.
Soft cover. Very Good. 8.5 x 11 inches, stapled. 11 pp, with bibliography and 12 b/w illustrations (photos). Sticker shadow on front cover, internals fine. Describes the practice of the Zapotec Indians of eating earth as a preventive and curative medicine and includes "information on the background, significance, and process of manufacture of the panecitos banditos, the designation in Spanish for the earth cakes."