The twenty-fifth anniversary service of the class of 1890 will be held in Appleton Chapel tomorrow at 5.30 o'clock and will be conducted by members of the class. Only members of this class and friends accompanying them will be admitted. The class will gather informally at Phillips Brooks House at 4 o'clock, and will later proceed to Appleton Chapel in a body.

The class will have its headquarters at the Copley-Plaza Hotel beginning tomorrow at 11 o'clock. Luncheon will be served at the hotel at 1.30 o'clock and at 6.45 o'clock the members will attend the reception of President and Mrs. Lowell. Supper will be served at the Brookline Country Club.