Vacation's over, and it's back-to-work time. Those of you who want to stay around for the Spring term should do the following: go to the first meeting today and tomorrow of all courses except those attending the sectioning meeting tomorrow, register this afternoon, and pay your term bills by 2 p.m. today at the Harvard Trust Company.

Undergraduates who were enrolled during the Fall term should register in person at Mem Hall as follows: A through M, 1 p.m. to 3 p.m.; N through Z, 3 p.m. to 4 p.m.; Joint Registration, 4 p.m. to 5 p.m. Undergraduates not enrolled during the Fall term may register from 9 a.m. to 5 p.m. in the College Registrar's Office, Holyoke Center.