Keefer's book is one of the greatest hymns of praise to the age of iron and steel ever written in North America. It brings four of the author's works together. At one level these essays say a great deal about railroads and about Canadian society; at another they represent a cycle, from enthusiastic idealism to realism, in one man's thought; and at yet another, they introduce the reader to the historian's problem of establishing relationships between ideas and the material conditions within when they appear.