Meet Sam, the man troopers brought in because he was standing at the center of the turnpike, directing traffic, claiming to be God's police chief on earth. And Mary, a middle-aged women so obsessed with clean hands she has rubbed her palms raw and bloody. Then, too, there is Dr. Hudson Hoagland, who uses an ant farm and peppermint oil to illustrate the ancient roots of society's hostility toward schizophrenics. They are all at Worcester State Hospital, the first state insane asylum established in this nation, and the topic of Dr. Enoch Calloway's fascinating, fast-moving book about this...