SIR ARTHUR SULLIVAN'S incidental music greatly enhanced the interest of the production, in England, of the late Lord Tennyson's last dramatic poem "The Foresters," on the 3rd ult., at Mr. Daly's new theatre. The happy appropriateness of the graceful melodies and the merit of their simple treatment can only be fully realised when the music is heard in connection with the scenes for which it was written. The setting of the beautiful lyric "To Sleep," the characteristic song "The Bee buzz'd up in the heat," with its descriptive accompaniment, and the numbers set for solo and chorus, "There is no land like England," "By all the deer that spring," and "Evil Fairy, do you hear?" gained immensely by the accompanying dramatic action; the tableau of the Fairy's Chorus, removed from the end of the second to the end of the third Act, being of remarkable beauty. Miss Catherine Lewis, as Kate, sang with much archness "The Warrior Earl" and "The Bee song" (transferred from the part of Marian); Mr. Lloyd Daubigny made use of a pleasing tenor voice, and the choruses were excellently sung. The performance of choir and orchestra reflected much credit on the Conductor, Mr. Henry Widmer.