Impeccably researched, and written with Charlotte Gray's unerring eye for personal and historical detail, Reluctant Genius tells the story of a man very different from his public image. Most of us think of Alexander Graham Bell as a white-bearded sage, but the young A lec Bell was a passionate and wild-eyed genius, a man given to fits of brilliance and melancholy. His technologies for photophones, tetrahedrals, flying machines and hydrodomes laid...