Wilmington Institute! A grand complimentary benefit tendered to the Philadelphia Quintet Club! : by the citizens of Wilmington, will take place on Thursday evening, May 7, '63 on which occasion that favorite band of artists will present and perform the following programme. ... Miss Fannie A.B. Magonagal, from the philharmonic concerts at St. Louis--her first appearance in this city. ... The concert will terminate with the great national airs, Red, white and blue! The Marseillaise hymn, and The star-spangled banner Conductor, Herr L. Engelke ... Doors open at quarter-past 7 o'clock. To commence at 8. Admission, 25 cents Tickets and programmes may be had at the music stores of Messrs. Chas. Grobe and W. Harper; also at the principal book stores.