The programme for the promenade concert at Mechanics' Hall, tonight, will be as follows: 1. March, "El Capitan," Sousa. 2. Waltz, "O Schoner Mai," Strauss. 3. Overture, "Orpheus aux Enfers," Offenbach Violin obligato, Mr. Otto Roth. 4. Selection, "The Serenade," Herbert. 5. Selection, "Trovatore," Verdi. 6. Waltz, "Nachtswarmer," Ziehrer. 7. Le Dernier Sommeil de la Vierge, Massenet. 8. Two Slavic Dances, Dvorak. 9. Overture, "Fra Diavolo," Auber. 10. Polka from "The Gypsy Baron," Strauss. 11. Waltz, "Pomone," Waldteufel. 12. Oriental March, Zach.