OVER 4-THOUSAND U-C-S-C STUDENTS ARE GRADUATING AT THE END OF THIS WEEK. THE UNIVERSITY’S COMMENCEMENT WEEKEND STARTS THIS FRIDAY. GRADUATE STUDENTS START THE CEREMONIES FRIDAY AT 4 P-M. SATURDAY, STUDENTS FROM Porter, Merrill, College Eight, Cowell, Oakes and Kresge COLLEGES GRADUATE. THEN ON SUNDAY THE FINAL 4 COLLEGES WILL HOLD THEIR COMMENCEMENT CEREMONIES.A