See scenes of the Feb. 18 Mass in the Cathedral Basilica of SS. Peter and Paul in which Archbishop Nelson J. Perez, a priest of the Archdiocese of Philadelphia ordained in the cathedral in 1989, became the 10th archbishop of Philadelphia amid a joyous outpouring of affection by clergy, religious and lay people. See complete coverage in our Welcome Archbishop Perez section. (Photos by Sarah Webb except where noted)