"Harp's study supplies a missing chapter in American intellectual history, and one essential to the emergence of twentieth-century liberalism. He identifies one wing of the intellectual ferment of the 1870s and 1880s, deriving from Auguste Comte, which must be understood in order to fully grasp the character of Ward's, Bellamy's, and later Progressive thought. This book bears the best marks of good intellectual history. It is important, exciting, and well-written."—R. Jeffrey Lustig, author of Corporate Liberalism

Historians have long recognized the influence of Darwinism and German idealism on late Victorian intellectual discourse. In The Positivist Republic, Gillis Harp argues that, in America, Auguste Comte's positivism constituted another formative influence-one that has not been fully appreciated. In fact, according to Harp, Comtean positivism was critical to the transformation of Anglo-American social and political thought during the last third of the nineteenth century.

Harp identifies a thread of Comtean ideas running through the writings of Lester F. Ward, Edward Bellamy, Herbert Croly, and several lesser-known individuals, all of whom played a significant role in Gilded Age and Progressive reform. By highlighting this Comtean thread, Harp furnishes a fuller, more complex picture of the fabric of American political thought in this key transitional period and enhances our understanding of the emergence of modern, corporate liberalism by the start of the twentieth century. Although many of these individuals have received scholarly attention before, Harp is the first to study them together as a discreet community and their work as a body of discourse, thus providing fresh insights to help us understand them in their proper intellectual context.