The Negro population of America, due to factors in its history, constitutes at present a considerable proportion of the familiar low-income group families and, in like manner, has in its own com position a larger proportion Of families of this level than is true of other groups Of the population. In housing, the process Of selection and segregation normally follows economic lines. If this were all, there would be no reason for discussing Negro hons ing apart from the simple factors of economic status and selection. It would be understood that the same general conditions operate to fix the physical limits of their residence and, in SO far as the causes are common, the remedies have no need to vary.