 Complete the following phrase:  In 1848 he began to engage in politics, becoming the Paris correspondent for LIndépendance belge in Brussels. His submissions were very remarkable and full of life and spirit, and also full of information. He also became a noted theatre and music critic, first for LOpinion nationale, for which he later wrote a Monday column entitled Revue dramatique et lyrique, then for La France in 1865, and finally for La Presse. After Jules Janin he was the critic who was most respected and feared. Many of his reviews were collected and published in 1867 in book form as Entre cour et jardin: études et souvenirs du théâtre Between Court and Garden: Studies and Recollections of the Theatre. In 1873 he published a collection of sketches of famous dramatists as Les Coulisses du passé In the Wings of the Past and the book Les Sièges héroiques Heroic Sieges, which tells the stories of celebrated sieges from the liberation of Orléans by Joan of Arc in 1429 to the 