As the ninth speaker in the Union's main series of lectures, open to members Theodore Roosevelt '09, son of the late president will speak in the Living Room of the Union on Friday evening, February 25 at 8 o'clock. His subject will be "Participation in Public Life."

Before the lecture Mr. Roosevelt will be entertained by the Governing Board of the Union at a dinner to which prominent members of the faculty have been invited. On Saturday evening he will dine at the Colonial Club, but the Union lecture will be his only public appearance in the vicinity of Boston.

Mr. Roosevelt is very well qualified to speak on the private citizen in politics, as since the war, he has been very prominent in several matters of national interest.

Served in France

During the war he served as a Lieutenant Colonel of the 26th United States Infantry, one of the first divisions of the A. E. F. in France. He took part in several of the major engagements of the American campaign, among them the battles of Cantigny and Soissons, and in the Argonne and St. Mihiel offensives. He was wounded, and because of his distinguished service he was decorated with the Legion of Honor and the Croix de Guerre by the French Government.

On his return to America he took a leading part in the formation of the American Legion, and was nominated for the presidency of that organization. He declined this honor, however, and returned to private life. In 1919 he was elected to the Assembly of New York, where he was opposed to the ousting of the Socialist members of the Assembly a short while ago. He is also a leader in many reform bills, and has taken a prominent part in spreading the doctrine of "clean politics."

Besides this, Mr. Roosevelt is the author of "Average Americans," which was published in 1919.