"Fascinating and highly readable account of an ethnobotanist's research on medicinal plants and hallucinogens among the Trio and Oyana of Suriname/Brazil and the Yanomamo of Venezuela. In view of the declining importance of shamanism and loss of plant knowledge due to rapid cultural change, author encourages research promoting the patenting of indigenous knowledge of medicinal plants, which may also serve as an important revenue source for indigenous-based cultural survival programs"--Handbook of Latin American Studies, v. 57.