Psychedelics, neuroscience, and historical biography come together when a journalist finds a lost photograph of Aldous Huxley and uncovers a hidden side of the celebrated author of "Brave New World" and "The Doors of Perception." Allene Symons had no inkling that Aldous Huxley was once a friend of her father's until the summer of 2001 when she discovered a box of her dad's old photographs. For years in the 1940s and '50s, her father had meticulously photographed human hands in the hope of developing a science of predicting human aptitudes and even mental illness. In the box, along with all...