A special service, commemorating the 87th anniversary of the birthday of Phillips Brooks, will be held in Peabody Hall, Phillips Brooks House tomorrow evening at 7.30. The Right Reverend Charles L. Slattery '91. Bishop Coadjutor of Massachusetts, and the Reverend Professor Francis G. Peabody '69 will speak. Bishop Slattery was a student at the University when Phillips Broods was a member of the Board of Preachers, and Professor Peabody was one of the famous man's colleagues and intimates.