Nationalism and Socialism is a study in the history of Marxian ideas; but it is also an attempt to show how the ideas are related to the society from which they sprang, and how the changes in social relations were reflected in the emergence of a whole new formulation of nationalist theory. Horace Davis brings together, for the first time in English, the contributions of the many writers in the Marxist and labor camps to the development of nationality theory down to 1917. The verbal battles between Bakunin and Engels, and between Rosa Luxemburg and Lenin, are shown to treat issues that marked the course of the entire twentieth century.