During the period of America's swiftest industrialization and urban growth, fire struck fear in the hearts of city dwellers as did no other calamity. Before the Civil War, sweeping blazes destroyed more than $200 million in property in the nation's largest cities. Between 1871 and 1906, conflagrations left Chicago, Boston, Baltimore, and San Francisco in ruins. Into the twentieth century, this dynamic hazard intensified as cities grew taller and more populous, confounding those who battled it. Firefighters' death-defying feats captured the popular imagination but too often failed to...