Readers who believe as Herman Melville's Ishmael, that "meditation and water are wedded for ever," will be entranced by Rex Johnson, Jr.'s, account of his travels to the upper Bavispe River in Mexico's northern Sierra Madre. Combining travel observations, natural history, ethnography, ecology, and ichthyology, Johnson's narrative plunges the reader into a world that is so far from the twenty-first-century United States that it is difficult to believe...