Negishi examines a broad range of topics in the history of economics that have relevance to current economic theories. The author contends that one of the tasks for historians of economics is to analyze and interpret theories currently outside the mainstream of economic theory, in this case, Walrasian economics. Familiar topics covered include the division of labor, economies of scale, wages, profit, international trade, market mechanisms, and money. These are considered in reference to the well-known non-Walrasian schools of thought.