The programme for the promenade concert at Mechanics' Hall, tonight, will be as follows: 1. March, "Austria,"  Zach. 2. Overture, "Le Roi l'a dit,"  Delibes. 3. Waltz, "Les Patineurs,"  Waldteufel. 4. Violin Solo. Two Spanish Dances.  Sarasate. Mr. Otto Roth. 5. Ballet Music from "Faust,"  Gounod. 6. Serenade,  Moszkowski. 7. 'Cello Solo, "Kol Nidrei,"  Bruch. Mr. Josef Keller. 8. Waltz, "Vienna Blood,"  Strauss. 9. Flute Solo. Mr. A. Maquarre. 10. Serenade Lyrique,  Elgar. 11. Mazurka, "La Czarina,"  Ganne. 12. March, "Werner,"  Ziehrer.