New York: New York Labor News Company, 1949. First Edition. Octavo (19.5cm.); original cloth in pictorial dust jacket; 187,,(ads)pp.; photographic frontispiece, illus. throughout. Minor dust-soiling, light shelf-wear to jacket extremities, else About Fine. History of Daniel De Leon's Socialist Labor Party, its role in the termination of the Second International, and its refusal to join the Third International. SEIDMAN H111; see also BRENNEMAN, p. 120.