8.00.--Delta Upsilon Elizabethan Revival, "Ralph Roister Doister," at Brattle Hall.

8.15.--Last Pop Concert of Pierian Sodality in Living Room of Union.

Tuesday, March 12.

4.30.--Geological Conference: "Some Late Aspects of the Eolithic Question," by Dr. Charles Peabody; "Review of Goldschmidt's 'The Diamond'," by Professor Palache, in the Mineralogical Lecture Room, University Museum.

5.00.--Address on "The Creed in Personal Religion," by Rev. A. W. Moulton at Chapel of Episcopal Theological School, Brattle street.

8.00.--Delta Upsilon Elizabethan Revival, "Ralph Roister Doister," at Brattle Hall.

8.15.--Lecture on "The Route of the Air," by Professor A. L. Rotch, in the Living Room of Union.

Wednesday, March 13.

5.00.--Cutter Lecture on Preventive Medicine. "Observations on Dosage and Methods of Injecting Antitoxin in the Treatment and Prevention of Diphtheria and Tetanus," by Dr. W. H. Park, Director of Research Laboratories, Department of Health, New York City, in the Amphitheater of Building E, Medical School, Longwood avenue, Boston. Members of the Medical School, the Medical Profession, and the Press are cordially invited.

7.00.--St. Paul's Society weekly meeting for "Discussion of Plans for Somerville Mission," at Noble Room of Brooks House.

Second Regular meeting of entire Student Council in Committee Room of Union.

8.00.--*Organ Recital. Professor H. D. Sleeper, of Smith College, assisted by Mrs. May Sleeper Ruggles, at Andover Chapel.

8.15.--Eighth Historic Operatic Concert in Sanders Theatre.

Thursday, March 14.

4.45.--**Harvard Zoological Club. "In heritance in Drosophila," by Mr. P. W. Whiting, at Zoological Laboratory, Room 4, fourth floor, University Museum.