In the 1940s, biologist Richard Evans Schultes uncovered many of the secrets of the rain forest, relying not only on his own prodigious investigations, but on the wisdom passed down by local tribes. Thirty years later his student, Wade Davis, followed in his footsteps. Two interwoven tales of scientific adventure bring to life the riches of the Amazon basin and bear witness to the destruction of its indigenous culture and natural wonders over two generations.

Best known for The Serpent and the Rainbow, Wade Davis is an ethnobotanist interested in the native uses of plants, especially psychotropics. He finds many such plants in the travels he recounts in One River, especially coca and curare. (The first, famously, is a curse in the First World but is a necessity in the Andes, where it promotes the digestion of many kinds of food plants.) Framing Davis's narrative is an account of the dangerous World War II-era Amazonian expeditions undertaken by his mentor, Harvard biologist Richard Evans Schultes. Davis describes a few hair-raising encounters of his own, making this a fine book of scientific adventure.

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