ABSTRACT
In the Negro community the process is the same, but some of the details are different. Since Negro migrants represent a group of low economic status, if not restricted in their movement they would occupy the city areas of lowest rentals. But barriers to free movement have forced them in part into “middle-class” areas where as Mr. Jonassen has pointed out there have been increases in area rates. Mr. Jonassen has pointed out quite correctly that the problem of analyzing what happens to the rates among nativity groups as they move out is complicated by changing proportions of each nationality in the foreign-born population, the possibility of changing ratios of children to adults, and similar variables. The changes within the zones or areas may have been rather great, especially in the inner areas, as Mr. Jonassen suggests, but in relative magnitudes the rates show little change.
