The Socialist Club will be addressed by Dr. Harry W. Laidler, of New York, organizing secretary of the Intercollegiate Society, at its meeting in Emerson J this afternoon at 4.30 o'clock. Dr. Laidler, who is the author of "Boycotts and the Labor Struggle," has spoken before the Socialist Club several times in the past. A discussion on "The Challenge of Socialism to the College Man," will be held immediately following the meeting. Particular attention will be paid to the causes of the present high cost of commodities from the Socialist viewpoint.