What is the author's style in To the Finland Station; a Study in the Writing and Acting of History by Edmund Wilson?

Edmund Wilson writes TO THE FINLAND STATION in the third person point of view. The author is the narrator in this journey through a one-hundred-and-fifty year time span through the development of the process of revolutionary thought. The author gives a logical presentation of the development of this process. His style and presentation allow the reader to see how one writer built on another and how this process, beginning with Michelet, resulted in the works of Marx and Lenin.