Dance Class, Introductory Ballroom Waltz, 5 sessions, September 25 through October 9. Sundays at 5 to 6:30 pm and Wednesdays at 7 to 8:30 pm. For new dancers and those wishing to refresh their skills. $40 each for entire series; Couples, $70. Call 314-4269 or 250-5338. Advance registration encouraged.