Carl Kaysen offers a penetrating economic analysis of the issues in the civil antitrust suit brought by the United States Government against the United Shoe Machinery Corporation under Sections 1 and 2 of the Sherman Act. Kaysen, who served as clerk to Judge Charles E. Wyzanski, Jr. of the U.S. District Court of Massachusetts for this case, provides background material on the technique of shoe machinery and shoe manufacture, on the history of the United Shoe Machinery, and on the Anti-Trust Laws.