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The incidence of annexation, the growth in the original area and in the area annexed, and the proportion of growth due to annexation between 1950 and 1970 are analyzed for U.S. cities grouped by size, metropolitan status, and region of the country. Over this period, annexation was a principal means of population growth for incorporated places outside the Northeast. Though often associated with metropolitan growth, annexation was even more important in the growth of nonmetropolitan cities. Overall growth differences by size of place, metropolitan status, and decade (1950--1960 or 1960--1970) could not be explained by the incidence and nature of annexation.

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Using an ecological perspective, one aspect of the relationship of social distance and physical distance is analyzed in the three largest cities in Israel. The principal aim of the paper is to examine ethnic (country of origin) residential segregation as an indicator of social patterning within the society. Despite the different demographic, topographical and functional characteristics of the three cities, fairly similar patterns of ethnic segregation are found using the technique of Smallest Space Analysis (SSA-I) to analyze index of dissimilarity matrices. Patterns of ethnic segregation are then related to the SES of sub-quarters to determine the nature of the internal structure of the cities. It is suggested that ethnicity is an important variable in the process of social stratification in urban Israel, at least insofar as ecological relationships are concerned.

Research on school desegregation in U.S. cities has focused on the issues of white flight and the potential for racial residential integration of segregated neighborhoods. There is also concern over the effectiveness of a metropolitan desegregation plan for racial integration as against a plan which encompasses only the central city of urban areas. This paper deals with a court-ordered metropolitan school desegregation plan in New Castle County, Delaware. The method used is an examination of 602 small geographic areas (grids); the objective is to examine the extent of residential out-migration of students from the central city and to examine whether there is any tendency toward racial residential integration in the county. Evidence suggests (a) that the central city grids are retaining white students but losing black students and (b) that the level of racial segregation of suburban neighborhoods is not declining.We conclude from preliminary data that with each succeeding year, internal relocation, rather than moves to private school and out-migration from the metropolitan area, will be the major characteristic of student redistribution. If this is the case, the extent to which intra-system relocation results in racially integrated and stable neighborhoods should be a major research and policy focus.