The Union held a debate in Boylston Hall last evening. Question: "Resolved, that high license is preferable to prohibition as a method of dealing with intemperance." Regular disputants: affirmative, P. Robinson, L. S., W. Magee, '89; negative, E. Platt, '88, A. Reisner, '89. The vote on the merits of the question was, affirmative 17: negative, 6. On the merits of the argument of the principal disputants, affirmative 20; negative 11. The debate was the most spirited known in the Union for a long time, and many spoke from the floor.