Between 1875 and 1920, Chicago's homicide rate more than quadrupled, making it the most violent major urban center in the United States--or, in the words of Lincoln Steffens, "first in violence, deepest in dirt." In many ways, however, Chicago became more orderly as it grew. Hundreds of thousands of newcomers poured into the city, yet levels of disorder fell and rates of drunkenness, brawling, and accidental death dropped. But if Chicagoans became...