Mar. 31.--The Building of Sociology.
Apr. 1.--The Moot Points of Sociology.
Apr. 3.--The Recent Tendencies of Sociology.
Apr. 4.--The Desiderata of Sociology.
Lectures on Light.
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Six lectures on "Light from the Standpoint of the Electromagnetic Theory" will be given by Dr. G. W. Pierce, on Friday mornings, at 10 o'clock, in the Jefferson Physical Laboratory, Room 25. These lectures will be open to members of the University.