19^th Century French and Italian operas are the order of the day when New Jersey Lyric Opera (NJLO) presents its “Summer Opera Festival” with Verdi’s Il Trovatore, Bizet’s The Pearl Fishers, Rossini’s The Barber of Seville and Gounod’s Romeo and Juliet at Mercer County Community College’s Kelsey Theatre in West Windsor this Friday, Saturday and Sunday August 28, 29 and 30.