A hundred years ago and more, a walk down a Chicago street invited an assault on the senses. Untiring hawkers shouted from every corner. The manure from thousands of horses lay on streets pooled with molasses and puddled with kitchen grease. Odors from a river gelatinous and lumpy with all manner of foulness mingled with the all-pervading stench of the stockyard slaughterhouses. In Sensing Chicago , Adam Mack lets fresh air into the sensory history...