The title, plus the fact that this study was prepared under the joint auspices of the Conservation of Human Resources Project of Columbia University and the .S. Department of Labor, indicate a professional readership. At the same time there are in the procedure and conclusions several findings of use to anyone interested in civil rights or the basic problems of unemployment. Pursuing the correlation referred to in his title, Dr. Hiestand has conscientiously pulled his thesis right out from under himself. In a word, his findings were negative, and he was forced to conclude that ""the key determinants of the growth of minority group employment are noneconomic forces, such as changed attitudes and behavior of the white majority."" Carrying this one step further, the improvement of the lot of minorities, ""particularly Negroes,"" must come from political and social changes, rather than economic ones. Dr. Hiestand commands admiration as a scholar with the commonsense and courage to seek answers beyond his own discipline. Special.