Beginning at 11:30 o'clock this morning with the literary exercises in the Kirkland House triangle, Class Day, gayest festival of the Harvard year, will be celebrated all today and far into the night. The age-old confetti battle in the Stadium and the second of the Harvard-Yale baseball series in the afternoon, are other highlights of the holiday program, in which graduating Seniors and their guests, share the spotlight with the reunion classes back in Cambridge for a week of renewal of the old ties.

The literary exercises, first event on the Class Day program, will consist of the delivery of the Class oration by Wiley E. Mayne of Sanborn, Iowa; the Class Ode, written by Morris Earle, of New York City, and sung to the tune of "Fair Harvard" under the direction of the Class Chorister, Robert W. Snyder, of Easton, Pennsylvania, and the Class Poem, by John S. Bainbridge, of New York City.

In stately ritual, santified by precedents of nearly three centuries, the University's two hundred eighty-seventh Commencement tomorrow will solemnize the awarding of degrees to approximately 2,200 students 'n the College and eleven Graduate Schools. Honorary titles, in recognition of distinguished service to the University or to the Community will be conferred by President Conant at the morning exercises.

Throughout the day historic rites will be observed, linking the University with its beginnings 300 years ago. These picturesque affairs will include the opening of the morning exericses by High Sheriff McElroy of Middlesex County; the seating of the president in an ancient Tudor chair, and many others.

At the conclusion of the morning literary exercises, Seniors will lunch together for the last time as undergraduates in Kirkland House, while the alumni and guests will be served in the House dining halls.

Following luncheon today, the mile-long parade of alumni, led by the 25th reunion class, will start at 1:30, under the direction of Alan J. Lowrey '13, of San Francisco, Chief Marshall. The Stadium exercises, taking place on a special stage erected at the "Bowl" end, are scheduled for 2 o'clock.

Principal feature of the Stadium program will be the Ivy Oration, given this year by Nathaniel G. Benchley, of Scarsdale, New York. At the conclusion of Benchley's talk, and following the transferal of colors to the Freshman class, the confetti battle gets under way.

Next, the Yale baseball game, and after supper and dancing in Houses, the Glee Club and the University Orchestra will present a concert in the House triangle followed by dancing.