Christmas vacation has finally arrived, and the mass evacuation of Cambridge has begun.

BULLETIN

Early this morning officials at Logan Airport reported several flight cancellations by Eastern and Northeast Airlines. American had not cut out any flights but a spokesman there said cancellations were "likely."

Vacationing students will find driving conditions today "very hazardous" but should have no problems with plane or train reservations.

According to the AAA, the snow forecast for early this morning will make the Massachusetts Turnpike particularly dangerous. The weather bureau at Logan Airport predicted a four inch accumulation beginning between 3 and 4 a.m. with rain or sleet following.

All airplanes should be running on schedule, however, a spokesman at Logan Airport told the CRIMSON yesterday. Weather bureau officials pointed out that the expected storm would not be nearly as bad as last week's, which tied up the airways considerably.

Vacation in Cambridge

For those remaining in Cambridge, the CRIMSON has compiled the following information.

All departments of the University will close at noon on Friday and re-open at 9 a.m. on Tuesday, Dec. 27. Otherwise, all departments except the libraries and the dining halls will operate on regular schedules during the Christmas recess. All Freshman dorms and all Houses will be open, and mail and parcel post delivery will continue as usual.

Lamont Library will be open from 9 a.m. to 5 p.m. Monday through Friday, but will be closed from Dec. 24 to Dec. 26 and from Dec. 31 to Jan. 2. Widener Library will be open from 9 to 5 on Dec. 21-23, 27-30, and Jan. 3-4. The library will be closed Dec. 24 to Dec. 26, Jan. 3-4 and will close at 1 p.m. on Dec. 31.

All dining halls except Adams House will close after dinner today. Students remaining in Cambridge may sign on at Adams House dining room for regular board during vacation.