All notices for the weekly CRIMSON Calendar must be placed in the notice box in the CRIMSON Office on Fridays before 5 o'clock, marked "For the CRIMSON Calendar."

Monday, March 23.

4.30.--*Seminary of Economics. Professor Ripley on "Recent Experience in Railroad Construction Finance" in Upper Dane.

5.00.--*Physical Colloquium. Professor Bridgman on "The Phosphorus Problem," Room 25, Jefferson Physical Laboratory.

7.00.--Meeting of Freshman Bible Class in Phillips Brooks House.

8.00.--Modern Language Conference. Professor F. N. Robinson on "David ap Gwilym." Conant Common Room.

8.00.--Senator H. F. Hollis '92 on "From One Senator's View Point" in Living Room of Union.

8.00.--**Lowell Lecture. Bertrand Russell on "Our Knowledge of the External World.

Tuesday, March 24.

3.30.--*Lecture. "Spenser." VI. Dr. Percy W. Long in Lawrence 12.

4.00.--Special meeting of the Faculty of Arts and Science at University 5.

4.30.--**Lecture. "Japanese Art a General Survey." Professor Anesaki. Lecture Room, Fogg Art Museum.

4.30.--*Geological Conference. "Schuchert's Paleogeographic Maps," Professor Raymond. "The Serpentines of Quebec." Mr. Edward Wigglesworth. Mineralogical Lecture Room, University Museum.

8.15.--*Boston Society of Medical Sciences. Massachusetts General Hospital Boston.

8.15.--**Organ Recital. Dr. A. T. Davison, Jr., assisted by Mr. Otto Riedl. Andover Chapel.

9.00.--Senior Smoker. Stoughton to Thayer.

Wednesday, March 25.

4.30.--**Hyde Lectures on Foreign Missions. Mr. John R. Mott on "The Present World Situation and Its Summons. I. The Unique Elements in the Present World Situation." Sanders Theatre.

4.30.--**Lecture. "Some Drawings and Works by Leonardo da Vinci." Dr. Oswald Siren, of Stockholm.

4.45.--*Chemical Colloquium. Mr. R. H. Patch on "The Splitting of Oxyl Carbinols," in T. Jefferson Coolidge Laboratory.

5.00.--Cutter Lecture. Dr. C. L. Wilbur in Amphitheatre of Building A, Harvard Medical School. Topic: "Vital Statistics in Massachusetts and the United States."

7.00.--1916 Dinner and Play in Living Room of Union.

7.00.--Meeting of St. Paul's Society. The Rev. Harvey Officer '95 on "The Holy Catholic Church."

8.00.--Pi Eta Play, "A Bug in a Rug" in Jordan Hall, Boston.

Thursday, March 26.

4.30.--**Hyde Lectures on Foreign Missions. Mr. John R. Mott on "The Present World Situation and Its Summons. II. The Field for Statesmanship in Christian Missions" Sanders Theatre.

5.00.--Cutter Lecture. Dr. C. L. Wilbur. Building A, Harvard Medical School. Topic "Vital Statistics in Massachusetts and the United States."

8.00.--**Lowell Lecture. Bertrand Russell on "The World of Physics and the World of Science."

8.00.--Boston Symphony Orchestra Concert. Soloist. Fritz Kreisler. Sanders Theatre.

8.00.--Pi Eta Play. "A Bug in a Rug." Pi Eta Theatre, Cambridge.

9.00.--Professor C. T. Copeland. Reading from Dickens at the Harvard Club.

Friday, March 27.

4.30.--**Hyde Lectures on Foreign Missions. Mr. John R. Mott on "The Present World Situation and Its Summons. III. How to Meet the Present Demand for Larger Co-operation and Unity." Sanders Theatre.

4.45.--The Harvard Zoological Club. "The Morphology of the Eye Muscle Nerves." Professor H. V. Neal in Zoological Laboratory, Room 46.

5.00.--Cutter Lecture. Dr. C. V. Chapin on "Municipal Sanitation," Building A, Harvard Medical School.

7.00.--Meeting of Sophomore Bible Class. Phillips Brooks House.

7.30.--**Preaching Service by Mr. J. A. Wright at Divinity School and Andover Theological Seminary in Divinity Chapel.

8.00.--Pi Eta Play. "A Bug in a Rug". Music Hall Quincy.

8.00.--Triangular Debate. Harvard vs. Princeton. Sanders Theatre.

8.00.--Romance Seminary. Meeting in Upper Warren.

Saturday, March 28.

2.00.--Intercollegiate Fencing trials at Harvard Club.

8.00.--Pi Eta Play. A "Bug in a Rug." Exeter Opera House, Exeter.

8.00.--Hasty Pudding Club play. "The Legend of Leonora." Graduate Night, Club Theatre Cambridge.