MANHEIM.
The opera of Valeria, composed by M. Aloys Schmidt, long known as a distinguished pianist, was produced for the first time on the 2d December, under the direction of the composer. It went off most brilliantly; every piece from the overture to the very conclusion, being received with bursts of applause. After the fall of the curtain, M. Schmidt was enthusiastically called forward. Its reception, when performed again on the 16th December, was no less gratifying.