Parot, Joseph John. Polish Catholics in Chicago, 1850-1920: A Religious History. DeKalb, Illinois: Northern Illinois University Press, 1981. Pp. xvii, 298. Illustrations. $22.50 U.S. / Keil, Helmut and John B. Jentz, eds. German Workers in Industrial Chicago, 1850-1910: A Comparative Perspective. DeKalb, Illinois: Northern Illinois University Press, 1983. Pp. viii, 252. Illustrations. $22.50 U.S. - Blejwas, Stanislaus (Urban History Review / Revue d'histoire urbaine, 1984)