This report provides enrollment trend information for public four-year colleges and universities for the period fall 1990 through fall 1997. Several trends are highlighted: during this period, total enrollment fell 0.5 percent to 5.77 million students; enrollment of racial/ethnic minorities rose 24.5 percent; white enrollment fell 10.8 percent. The number of men enrolled fell 7.2 percent, while the number of women enrolled fell 0.1 percent. Geographical analysis showed increased enrollment in the Southeast, Southwest, and Rocky Mountain states, and the sharpest decreases in enrollment in New England and the Plains states. Also discussed is the impact on enrollment of policy developments, demographic factors, enrollment patterns, affirmative action efforts at the national and state level, and key judicial decisions. Presentation of the data throughout the document is separated according to institutional membership in either the American Association of State Colleges and Universities (AASCU; n=425) or the National Association of State Universities and Land-Grant Colleges (NASUC; n=200). Two appendixes present total enrollment figures for AASCU and NASUC colleges and universities for fall 1990 and fall 1997. (RAB)