APRIL 22. TUESDAY.Certain Authors of the XVIIIth and XIXth Centuries. Special subject : Daniel Webster. Professor A. S. Hill. Sever 11, 11 A. M.

Harvard Historical Society. The Virginai Campaign, May 3 to June 19, 1864. Mr. John C. Ropes. Sanders theatre, 7.30 P. M.

23. WEDNESDAY.Last day of receiving names of competitors for Boylston prizes.

Electricity and Magnetism. Professor Lovering. Harvard 3, 11 A. M.

24. THURSDAY.Argumentative Composition. Special subject : Study of Burke's Speech on Conciliation with America. Mr. Briggs. Sever 11, 11 A. M.

Harvard Union. Convention to nominate Presidential Candidates. Sever 11, 7.30 P. M.

This will be the last meeting of the Union this year, and at its close the result of the University canvass for presidential preferences will be announced.

JUNIOR THEMES.Mr. Wendell will criticize Theme VI., and explain in detail the analysis of style to be given with this theme to each student, in Sever 11, on Tuesday, April 22, at 2 o'clock.

Theme VI. will be returned in Sever 5, on Thursday, April 24, from 2 till 4.30.

Rewritten copies of Theme VI. will be due in Sever 3, on Thursday, May 1, and will not be received after that date without special authority from the Office.