George R. Lunn, the Socialist mayor of Schenectady, N. Y., will speak on "Abraham Lincoln" under the auspices of the Harvard Socialist Club in Emerson D this afternoon at 4.30 o'clock. The lecture will be open only to members of the University. Mayor Lunn will also speak in Tremont Temple this evening at 7.45 o'clock, his subject being, "The Principles Advocated by Abraham Lincoln Compared with Those of Socialism," Mr. Butler Wilson will speak for the colored people and a colored quartet will sing. Tickets at 15 and 25 cents are on sale at Tremont Temple and at the Socialist Headquarters, 14 Park Square, Room 6, Boston.

Mayor Lunn is the only socialist mayor in New York state and was elected last fall after an intensely interesting campaign in which the socialist ticket carried the city of Schenectady by a good majority.