Each year, nearly one American family in five will move. The past fitty years have seen millions of people moving to the cities of the North and the West from the agricultural areas of the South and the Middle West, plus a considerable movement of Puerto Ricans to the mainland. At present, internal migration patterns are shifting, with more people leaving metropolitan areas and moving to the South, to the West (the Sun Belt), and to small cities and rural ‘districts While this internal migration’ is different in form from international migration consequences of the two shifts are much the same. The movement in a new region changes the population compositipn, ‘provides new labor, and introduces a’ grcrllp .of people ignorant of the local , ho have to make their adjustment’to a strange cultural setting. Internal migrants thus make many of the same contributions and experience many of the same problems as did European immigrants of a earlier day.