In 1960 Timothy Leary was not yet famous--or infamous--and Allen Ginsberg was both. Leary, eager to expand his experiments at the Harvard Psilocybin Project to include accomplished artists and writers, knew that Ginsberg held the key to bohemia's elite. Ginsberg, fresh from his first experience with hallucinogenic mushrooms in Mexico, was eager to promote the spiritual possibilities of psychedelic use. Thus, "America's most conspicuous beatnik"...