By the Prophet of the Earth

By the Prophet of the Earth: Ethnobotany of the Pima is available for free online. This interesting book by L.S.M. Curtin contains cultural information about the Pima (O'odham) Indians here in Arizona. One section of the book describes the traditional uses of the edible and medicinal plants found here in the Sonoran Desert. The University of Arizona Press also has a number of other interesting books available for free online.