The Chora! Union held a very enthusiastic rehearsal last Tuesday evening, and the Chorus is in point of quality of tone even superior to last year. Negotiations are now in progress looking to the engagement of Herr Andreas Dippel, one of the nest tenors in the world, for the part of Faust in the Damnation of Faust, by Berlioz, which will be given at the final concert. We wieh to impresa upon the people the importance of securing tickets at once, for the expenses of such a course as proposed by the Choral Union are simply enormous and caa only be met by the sale of a large number of tickets. It must be generalJy conceded dn view of the success ol the last two years, that the Choral Union series is iar and away the most important series in the state, and it to be hoped that the immediate sale wil be of such proportions as to relieve the society irom any embarrasment it niay labor under with reference to the engagement of artists of uational as well as international reputation. The three last concerts in the series would cost at the regular city prices ior entertainments of such artistic importance doublé the price of an associate membership ticket ior the whole series, and it must be borne in mind that this series as announced tan only be given in case the required number of tickets are taken. These tickets eosting but $2.00 can be obtained from canvaesers in the University, at Calkins' drug store, State street, and at the Ann Arbor Organ Co's music store, Main street. ■ As many persons have made inquirlee respecting the "proposed cone#rte in the Choral Union series, we give 1111 acvii atractione: I. Detroit Phllharmonic Club. Miss Fannie Bloomfieid-Zetsler, pianist; Mr. E. B. Spalding, baritone; November 13. II. Ouide Musin, the cdebrated Belgian violinist, and a superb conipany. December 9. III. Mockridge Concert Company; Mrs. Mayo-Rhodes, soprano; Mr. Whitney Mockridge, taior; Mr. ! Arthur Beresford, bass; and Miss Belle Botsford, violinist. Januurv 30. . IV Choral Union, (240 voices) assisted by Miss Ginevra JohnstonBisliop, soprano, and a íull orchestra. February 12. V. Boston Symphony Orchestra (70 performers), Artliur Nikisch, conductor. May - . VI. "Damnatkm of Faust," Héctor Berlioz, Choral Union, Mrs. E. M. Hascall, soprano, Mr. Heiuricli Mi'yn and other soloists to be announced later, and an orshestra of 0,0 performers. May 17. The date of the Symphony concert cannot be announeed until the details of the western trip have been settled. It wlll be the firet Wffk In May in all probability.