Don Lattin is the author of The Harvard Psychedelic Club: How Timothy Leary, Ram Dass, Huston Smith, and Andrew Weil Killed the Fifties and Ushered in a New Age for America and Jesus Freaks: A True Story of Murder and Madness on the Evangelical Edge. His work has appeared in dozens of magazines and newspapers, including the San Francisco Chronicle, where he covered the religion beat for nearly two decades. 

In 1960, Timothy Leary set up an infamous institute at Harvard to experiment with psychedelic drugs. An exclusive excerpt from Don Lattin’s new book on how lifestyle guru Andrew Weil and other freshmen started tripping.