2 segregation in the United States (Taeuber and Taeuber 1965: 28-64). Residential segregation limits the possibilities for contaets between whites and blaeks and as a result deereases the potential for social unity. Resi- dential segregation has been seen to lead to a sense of eonfinement among ghetto residents which exaeerbates alI the other problems that affeet these neighborhoods. As a result the spatial separation of the raees has been viewed as a serious threat to the stability of the society (U. S. National Advisory Commission on Civil Disorders 1968: vii). Spatial separation also leads to other specific problems sueh as de laclo sehool segregation while segregated sehools have been declared inherently unequal. Furthermore the movement of blaeks to the suburbs that has oecurred in 2 recent years has not led to decreased patterns of isolation. Instead this shift has refleeted an expansion of existing ghetto areas aeross city bounda- ries. For example Cleveland s black ghetto has expanded into and through East Cleveland which is a distinct municipality; (see Arthur D. Little 1969) and Washington D. C. s ghetto has expanded northeast into suburban Prinee Georges County (Zehner and Chapin 1974). 3 Glantz and Delaney (1973) in a study of 14 ofthe 18largest metropolitan are as found that the degree of segregation of blacks within particular suburban municipalities had not changed much between 1969 and 1970. Blacks were coneentrated in the same suburban eommunities in 1970 as in 1960.