''Solidarity and Fragmentation should be required reading for anyone involved in the current labor movement -- indeed, for anyone interested in the prospects for radical change in America. . . . It is radical history at its best, speaking directly to the descendants of radicals and social visionaries about the lessons of their past.'' -- Monthly Review''This is a first-rate study of the interplay between class and ethnicity in a late nineteenth-century industrial city. . . . an important book that should be read not only by students of labor and immigration history but by all those interested in the evolution of American culture and values.'' -- American Studies