The first "pop" concert of the year will be given by the Pierian Sodality orchestra under the direction of W. H. Hewitt '14 in the Living Room of the Union this evening at 8 o'clock. The entertainment will be open to all members of the Union. A popular program that met with much success at the concert at Waltham will be presented. Light refreshments will be served during the evening. The program follows: 1. Overture, "Orpheus,"  Offenbach 2. Waltz, "Estudiantina,"  Waldteufel 3. Selection, "The Grand Duchess,"  Offenbach 4. (a) "Berceuse,"  Jarnfeldt (b) "Norwegian Dance,"  Grieg 5. Selection, "Sari,"  Kalman 6. Overture, "Si J'etais Roi,"  Adam 7. "Fair Harvard."