Following is the program for the Pop Concert in Symphony Hall this evening: Williams College Night. 1. March, "Under the Double Eagle,"  Wagner 2. Overture, "Light Cavalry,"  Suppe 3. a. Alma Mater,  Marvin '01 b. Come Fill up Your Glass,  Patterson '96 4. Selection, "The Arcadians,"  Monckton 5. Overture, "Mignon,"  Thomas 6. a. Rise Up, Hepburn '00--Kent '63 b. Ephraim Williams,  Taylor '99 7. Largo,  Handel 8. Rackoczy March,  Berlioz 9. Selection, "Madame Sherry,"  Hoshna 10. a. 'Neath the Shadows of the Hills,  Banks '90 b. Royal Purple,  Goodwin '95 11. American Fantasy, (Organ, Mr. Marshall).  Herbert 12. March, "Washington Post,"  Sousa