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, February 9.

Second half-year begins (except in the Graduate School of Business Administration; and the Dental School).

10.30.-Meeting of President and Follows of Harvard College at 50 State street, Boston.

4.30.-*Seminary of Economics. "Some Aspects of the Quality Theory of Money," by Professor Anderson in Upper Dane.

5.00.-**Lowell Lecture. "Mohammedanism," by Professor Hurgronje.

Elective courses beginning in Second half-year due before 5 o'clock.

7.00.-Freshman Bible Class.

8.00.-Modern Language Conference Meeting in Conant Common Room. "Student Life at Harvard Before 1750," by Mr. Albert Mathews.

8.00.-**Lowell Lecture. Professor Roscoe Pound on "The Spirit of the Common Law."

8.00.-*Physical Colloquium. "The Life and Work of Professor Benjamin Osgood Peirce," by Professor Hall and Professor Osgood, in the Jafferson Physical Laboratory, Room 3.

Tuesday, February 10.

First term-bill duo.

4.30.-Geological Conference, "Eruptive Periods in Eastern New England," by Mr. Sidney Powers. "The Cleavage of Chalcocite," by Mr. Joseph Murdoch, in the Mineralogical Lecture Room, University Museum.

7.30.-Undergraduate Economics Society in Committee Room of Union. Election of Officers.