The Deutscher Verein will produce this year at its annual performance a comedy by Gustav von Moser, entitled "Der Veilchenfresser." It will be necessary to make a few slight alterations in the play before it can be acted, but the piece will remain substantially as it was originally written. The parts will be assigned before the mid-years, and rehearsing will begin directly after the examinations. There will be one public performance in Cambridge, at Brattle Hall on April 2, and one in Boston at Union Hall on April 3.